COMP Cams CL11-600-4 Thumpr 227241 Hydraulic Flat Cam and Lifter Kit for Chevrolet Big Block 396-454. 461 BBC Big Mutha Thumpr Cam 6 speed manual, Exhaust popbang, Lean Spikes. Using our quick and easy upload process, performance enthusiasts like yourself have uploaded videos of their vehicles with aftermarket camshafts installed. 5-1comp cam bid mutha thumpr . 319 Exh. L-29 461 BBC 11. 549, 109 LS Ford Small Block 221-302 1963-1995 5. Comp Cams 12-600-8 Sbc Hyd Roller Big Mutha Thumpr Cam Thumper Camshaft. also a rebuilt 350 small block engine with a slight idle cam in. Go with an old comp 270 magnum or even better yet an 268h extreme energy comp cam. I'm close to saying the Base Fuel Table is fairly accurate and after some more drive time I'll go in and disable Learning in this range to lock in a good idle tune. primary talk may 2022 venetian. The Specs can be found below. May 1, 2020 Its slightly longer in duration and will reduce idle vacuum. 7 Top Best Performance Cams For 350 With Vortec Heads Comparisons. Especially on a choppy cam. Where the timing curve differs most with a big cam is low rpm and idle to help with the low vacuum. I personally dont care for the idle characteristics of those cams, but its what the owner. Do not attempt any other tuning until the idle is close to perfect. BIG MUTHA' THUMPR - Extremely rough idle, needs stroker motor andor ported heads. rebuilt 190cc64cc aluminum heads, Big Mutha Thumpr cam, weiand dual plane action plus intake and a 600 cfm freshly rebuilt carb with a 6. 476, Edelbrock Performer Intake, MSD Ignition, H. Go with an old comp 270 magnum or even better yet an 268h extreme energy comp cam. Rough idle, good mid to upper RPM range. 56's, 4 speed. took it to a shop. Streetstrip, needs 9. Looking for that ultimate hard-hitting Mustang idle Check out the aggressive new. I can't remember who also had the small Thumpr cam in a 390 truck, but I finished tuning the one I was working on and it responded very well to minor tweaking. I built a 540 big-block for a magazine using this camshaft and it made 630 hp and 660 ft. Get a vac gauge and tune the carb to the highest reading, your initial timing should be at least 18 20 would probably be best. RPM range from 2300 to 6600. COMP Mutha Thumpr, 454 BBC. Big Mutha Thumpr Cam (PN 12-602-4) 295313 Duration 2500-6500 RPM Range Lift 0. Go with an old comp 270 magnum or even better yet an 268h extreme energy comp cam. Big Mutha' Thumpr-Streetstrip, needs 9. SBC Thumpr Series Hyd. It idles around 11 to 12 inches of manifold vacuum with a carburetor and would make a great street engine. 476, Edelbrock Performer Intake, MSD Ignition, H. They can also be useful for troubleshooting electricalmechanical equipment when it overhe. 465 in - Duration 279 297 - 107 LSA - 2000 5800 RPM -. Stock springs cannot be used. 630 129089. Similar grind to Comp Cams 270H Rough idle 470 Lift lifters timing chain set, valve springs retainers locks seals, 292h, rough idle , lopey 350 crate motor A 700r4 4- speed automatic transmission is part of that equation, and it spins the original re Comp Cams K12-601-4 Mutha Thumpr Hyd Camshaft Kit - Chevrolet Sbc 350. Using our quick and easy upload process, performance enthusiasts like yourself have uploaded videos of their vehicles with aftermarket camshafts installed. Jan 16, 2014 By today&39;s terms, this was a relatively crude mechanical system, but it did a good job of optimizing engine efficiency, throttle response, fuel economy, and idle cooling, with absolutely ZERO effect on wide-open throttle performance, as vacuum advance is inoperative under wide-open throttle conditions. com Thumpr Camshaft 287 305, Lift. 465 in - Duration 279 297 - 107 LSA - 2000 5800 RPM -. See more on my Camaro Projects - http1969camarothumpr. 10118mph 9-30-22 10. Nice Small Block 327 CI V8 With Headers, Edelbrock Intake and Holley Carb, Driving a 4 Speed. Cam 279TH- Camshaft - Thumpr - Hydraulic Flat Tappet - Lift 0. Works well with stock exhaust. COMP CAMS Mutha' Thumpr NSR Hydraulic Roller Camshafts 228-242 . 3 ago 2015. The Thumpr scored highest in every category except absolute power peak. Mar 1, 2020 I think the thumper cams are ground on a 108 LCA but for me on the street I would use something with a 114 LCA for better street manners. - ChangeSet Initial timing to 15 to 16 degrees (mine is set to 15) - ChangeSet Vacuum Advance to 0. Sliders & Hardware; OEM Roof Racks; Off Road Roof Rack; Rear Wind Dams & Hardware; Lights. SBC Thumpr Series Hyd. Streetstrip, needs 9. The Thumpr scored highest in every category except absolute power peak. Good low end and mid range torque and HP, good idle, daily usage, off road, highway towing, fuel efficiency plus performance, 2600- 3000 cruise RPM, 8. rebuilt 190cc64cc aluminum heads, Big Mutha Thumpr cam, weiand dual plane action plus intake and a 600 cfm freshly rebuilt carb with a 6. Set the idle speed with the. took it to a shop. The valve covers and timing cover was taken off and i noticed i was off a tooth on. 15 rear. Thumpr 283THR-107 Hydraulic RollerComp&39;s series of Thumpr cams has been around just. Approximate compression is 9. primary talk may 2022 venetian. 8 in-hg of vacuum with the Vortec heads and 12. Comp Cams K12-601-4 Mutha Thumpr Hyd Camshaft Kit. 0L engine and all 351 engines are designed to use the 1-3-7-2-6-5-4-8 firing order. Custom Chevrolet Hydraulic Camshaft. See more on my Camaro Projects - http1969camarothumpr. That&39;s better than the 292H, but you&39;ll need a vacuum canister with the Vortecs. modified engines with more cam that generate less than 15 hg. 465 in - Duration 279 297 - 107 LSA - 2000 5800 RPM -. Save on Competition Cams Big Mutha&39; Thumpr 243257 Hydraulic Roller Cam and Lifter Kit for Ford 351W CL35-602-8 at Advance Auto Parts. Jul 21, 2010 Thumpr cams are designed to deliver the rough, racy exhaust note associated with big, carbureted race engines but retain their street manners. 95 103. 10 &183; Jan 27, 2009. 497" Duration 295312 RPM Range 2500-6400 View Details 239. By pg. 500 Intake0. ROLLER - BIG MUTHA THUMPR - Streetstrip, needs 9. Big Mutha Thumpr, 291THR9 - High Performance StreetStrip, Rough Idle. Comp Cams offers a number of camshafts for the AMC V-8, running from mild street performance to aggressive racing profiles. 461 BBC Big Mutha Thumpr Cam 6 speed manual, Exhaust popbang, Lean Spikes. Sample business proposal template for restaurant. Big Mutha Thumpr Cam (PN 12-602-4) 295313 Duration 2500-6500 RPM Range Lift 0. dd; gb; Big mutha thumpr cam idle speed. Set the timing at 15 initial with the vacuum disconnected and hose to the carb plugged. Free postage. If he wants to have that solid roller cam sound tell him to back the lifter preload off to between 0 and 18 turn. As Cole says, The Big Mutha Thumpr is a really serious cam in a smallblock; its not for the faint of heart. They will both give you a nice lopey idle with way more horse power and torque. Jun 11, 2016 HiGhDRo said sbc350 out of a 72 stingray. Top Rated Plus Top Rated Plus. Check for Availability 400. com Thumpr Camshaft 287 305, Lift. Comparing the idle vacuum between these engines is a direct reflection of the effect of overlap on idle quality. I appreciate any and all suggestions, I&x27;m kind of at a lost. BBC Mechanical Roller Camshaft. Buy COMP Cams K20-602-4 Big Mutha&39; Thumpr 243257 Hydraulic Flat Cam K-Kit for Chrysler. Big mutha thumpr cam idle speed The carb was dialed in and jetted properly while on the dyno. COMP developed the Thumpr, Mutha' Thumpr and Big Mutha' Thumpr cam grinds to not only make a great idle sound but also to produce a significant gain both horsepower in torque So i tried again this time reving to 3k with the same results 050 in a 427 Oct 18, 2012 &183; Re Rough idle when cold Oct 18 2012, 1256pm Hey man you might want to check you'r timimg or timeing sensor or. Standard OEM BBC Journal Size 1. Re How big is too big (sbc cam) Build a 331. 476-inch lift. Nov 22, 2019 763 Dislike Dentside Mechanic 298 subscribers 1979 F150 with a 351w 351w with gt40p heads, 4V QuickFuel Slayer 600 vs carb, Weiand Stealth Intake, Comp Cams Mutha Thumpr Cam. 050 ; Range. Had to move the water feed tot he manifolds to the back right before the exhaust went out of the hull. rebuilt 190cc64cc aluminum heads, Big Mutha Thumpr cam, weiand dual plane action plus intake and a 600 cfm freshly rebuilt carb with a 6. 50 gears and a CR 4 speed, cam. COMP developed the Thumpr, Mutha' Thumpr and Big Mutha' Thumpr cam grinds to not only make a great idle sound but also to produce a significant gain both horsepower in torque So i tried again this time reving to 3k with the same results 050 in a 427 Oct 18, 2012 &183; Re Rough idle when cold Oct 18 2012, 1256pm Hey man you might want to check you'r timimg or timeing sensor or. dd; gb; Big mutha thumpr cam idle speed. Save on Competition Cams Big Mutha&39; Thumpr 243257 Hydraulic Roller Cam and Lifter Kit for Ford 351W CL35-602-8 at Advance Auto Parts. By pg. 526" E, and 107. Big mutha thumpr cam idle speed The carb was dialed in and jetted properly while on the dyno. primary talk may 2022 venetian. I built a 540 big-block for a magazine using this camshaft and it made 630 hp and 660 ft. MurderedStang &183; Registered. The Thumpr line delivers true high performance engine sound by tightening the lobe separation angle of the camshaft. It took a solid 20 minutes before it was sufficiently warmed up for normal driving, and we idled and putted around and burned up all the crummy old gas before putting in a tank of good stuff. Save on Big Mutha' Thumpr 243257 Hydraulic Roller Cam for Chevrolet Small Block 12-602-8 at Advance Auto. I think the thumper cams are ground on a 108 LCA but for me on the street I would use something with a 114 LCA for better street manners. In fact, one of the most frequent questions from customers is,. Go with an old comp 270 magnum or even better yet an 268h extreme energy comp cam. 948 Dia. With an Automatic, You really don&39;t want your rpm&39;s so high that you are fighting to hold it at a stop light. The company offers three different versions of the Thumpr series camshafts for AMC V-8. run an ungodly large mechanical roller a tunnel ram and liberty shifted 4 speed. Stock springs cannot be used. 51 compression, 2800 stall, intake, gears and headers, very rough idle. The best cam for 350 with Vortec heads is one of the best investments you would make to advance your engines efficacy and, in return, obtain remarkable torque and horsepower gains. 700-800rpm(or won&39;t that cam let it idle that slow) . 461 BBC Big Mutha Thumpr Cam 6 speed manual, Exhaust popbang, Lean Spikes. I think if you got the Mutha Thumprs, you'd love the idle, but wish you had 4. MurderedStang &183; Registered. took it to a shop. 5 powervalve. Generate a head turning sound and a high performance idle by integrating the COMP Cams Thumpr Camshaft. 54-602-11 COMP Cams Big Mutha&039; Thumpr 235249 Hydraulic Roller Cam for GM LS GEN eBay Skip to main content. HiGhDRo said sbc350 out of a 72 stingray. I think GPS max speed with that SBC was 67 MPH. 486Intake Valve Lift (in. In fact, one of the most frequent questions from customers is,. Sounds Idle Cam. What is Cam Idle Sounds. Cam Specs. 10 &183; Jan 27, 2009. 050 (IntExh) 210218 Gross Valve Lift (IntExh) Car idle is rough Inspection Another thought is the way the idle mixture and speed are adjusted Ue4 Mesh Particles 0L) & Boss 302 (For Engines originally equipped with Roller cam) Performance level 3 - Original - Big cid camshaft (320-347 cid) with higher compression, good cylinder heads and valve train components Vehicles. The camera allows people to highlight what they believe in by giving them the power to document the world as they see fit. Buy online, pick up in-store in 30 minutes. com Thumpr Camshaft 287 305, Lift. I have a fresh rebuilt 454 with a comp thumper cam and I cannot get the. I have a zz4 shortblock, GM fast burn heads (62cc, 2. 5 powervalve. Jun 19, 2022. HiGhDRo said sbc350 out of a 72 stingray. 465 in - Duration 279 297 - 107 LSA - 2000 5800 RPM -. 476, Edelbrock Performer Intake, MSD Ignition, H. The cams come in three unique grinds known as ThumprTM Mutha ThumprTM and Big Mutha ThumprTM; each level fits a more aggressive. it; Views 24838 Published 13. 0L LS. 948 Dia. Mar 1, 2020 I think the thumper cams are ground on a 108 LCA but for me on the street I would use something with a 114 LCA for better street manners. HiGhDRo said sbc350 out of a 72 stingray. Style 2,500-6,400 RPM Range. 7 Top Best Performance Cams For 350 With Vortec Heads Comparisons. Cheap Aries 234009TB 4" Black Textured Steel Big Step. It performs at the RPM&39;s it says it does. Big Mutha&39; Thumpr Hydraulic Flat Tappet Camshaft Lift. took it to a shop. 476, Edelbrock Performer Intake, MSD Ignition, H. BBC Mechanical Roller Camshaft. 67 camaro 454 mutha thumper flat tappet cam idle with flowmaster mufflers 4-sp 4. That should equate to 10-12 initial. Thumpr 283THR-107 Hydraulic RollerComp&39;s series of Thumpr cams has been around just. Streetstrip, needs 9. 539 Valve Lift. 10118mph 9-30-22. DURATION ; OPERATING. 497" Duration 295312 RPM Range 2500-6400 View Details 239. Cheap Aries 3047. The Specs can be found below. HiGhDRo said sbc350 out of a 72 stingray. Streetstrip, needs 9. HYDRAULIC - Good torque and mileage. 3 grinds to fit all of your performance needs. 306 for this grind from Comp. its like chuck norris in a small block ford. SKU 00101H. The Specs can be found below. The map sensor is reading vacuumboost. The Thumpr scored highest in every category except absolute power peak. 476, Edelbrock Performer Intake, MSD Ignition, H. Streetstrip, needs 9. Sounds Idle Cam. com Thumpr Camshaft 287 305, Lift. By pg. 479 0. Unique design. Under acceleration the engine will only operate between idle kpa and wot kpa. 8ftlbs 4200rpm. Big Mutha Thumpr Cam (PN 12-602-4) 295313 Duration 2500-6500 RPM Range Lift 0. Unique design. Ford 289 302 Windsor Comp Cams Thumpr Retrofit Hyd Roller Camshaft Cc31-601-8 for - Compare prices of 101310 products in Auto Parts from 166 Online Stores in Australia. 5 powervalve. I am changing the cam on my engine. 5 powervalve. Looking for that ultimate hard-hitting muscle car idle Check out our aggressive new Thumpr Cams. Mutha' Thumpr and Big Mutha' Thumpr cam grinds to not only make a great idle sound but also to produce a significant gain both. The lower the vacuum (higher kpa) the smaller this window becomes. 040 in. AFR heads, these heads are not the same AFR heads you get out of the box from Jegs or Summit. What part do you need today Choose a Store Oil Filters. These Thumpr cams seem to like a little more advance timing. COMP Cams 35-602-4 Big Mutha Thumpr Cam Ford 351W 2500-6400 RPM made by COMP Cams, for as low as 158. L-29 461 BBC 11. It worked and put the hurt on a lot of boats with BBC engines. 51 compression, 2800 stall, intake, gears and headers, very rough idle. Such a combination still gives the Comp Cams Thumpr rompety-romp idle while producing good output. of torque. 1979 F150 with a 351w351w with gt40p heads, 4V QuickFuel Slayer 600 vs carb, Weiand Stealth Intake, Comp Cams Mutha Thumpr Cam (roller cam , part number 35 6. facetime sex chat, royal caribbean unlimited dining package explained
intake, gears and headers, rough idle; Valve spring upgrade required; Where to buy cheap COMP Cams CL12-601-4 Mutha' Thumpr 287TH7 Cam and Lifter Kit for Small Block Chevy You can buy COMP Cams CL12-601-4 Mutha' Thumpr 287TH7 Cam and Lifter Kit for Small. . Big mutha thumpr cam idle speed
The Thumpr line delivers true high performance engine sound by "tightening" the lobe separation angle of the camshaft. 65125mph 406 with home ported Dart 215 heads. 51 compression, 2800 stall, intake, gears and headers, very rough idle. Peak output with the Vortecs was 395. not exposing the transfer slot to get idle to about 1000 rpm. Similar grind to Comp Cams 270H Rough idle 470 Lift lifters timing chain set, valve springs retainers locks seals, 292h, rough idle, lopey 350 crate motor A 700r4 4-speed automatic transmission is part of that equation, and it spins the original re Comp Cams K12-601-4 Mutha Thumpr Hyd Camshaft Kit - Chevrolet Sbc 350 Comp Cams K12-601-4 Mutha Thumpr Hyd. For example a cam making 15 inches of vacuum may read 50 kpa at idle and one making 10 inches may read 65 kpa. The motor has a Comp Cams Big Mutha Thumpr cam(12-602-4). The A-Team Speedshop got the aluminum castings from AFR. 5 powervalve. 21 ene 2014. Choppythumping idle. Comp Cams Thumpr retro-fit hydraulic roller camshaft kit CL20-600-9 for 1964-2000 Chrysler small block 273-360 engines with single shaft mount rocker arm cylinder heads and originally equipped with a flat tappet cam. They flow better than the AFR heads out of the box. 486 Exhaust The basic science behind the Thumpr Cams is not a new one. If he wants to have that solid roller cam sound tell him to back the lifter preload off to between 0 and 18 turn. They will both give you a nice lopey idle with way more horse power and torque. Using our quick and easy upload process, performance enthusiasts like yourself have uploaded videos of their vehicles with aftermarket camshafts installed. 4 speed cars can handle a bigger cam that automatics as I have been told. While the Thumpr provides a choppy idle, the gear drive gives your engine a whining blower sound for the ultimate in. 479 0. Fits &39;67-&39;76 Buick 400, 430 and 455 ; Made in USA See more product details. com Thumpr Camshaft 287 305, Lift. It reaches a point where the map range it has to work with is so small it can&39;t compensate correctly. See more on my Camaro Projects - http1969camarothumpr. leave at 7,200 and shift at 9,800. MUTHA' THUMPR - High performance streetstrip, needs 91 CR, 2500 stall, intake, gears, and headers, rough idle RPM RANGE 2300 to 6600 LOBE SEPARATION 109 INTAKE CENTERLINE 103 DURATION 283 intake 303 exhaust DURATION . small lobe separation angle, your engine won&39;t ever idle well at low RPM. 3 ago 2015. 1 ene 2013. Cam Type Hydraulic Roller. 558 109 LSA, . I think GPS max speed with that SBC was 67 MPH. On a basically stock 350 SBC, has anyone used a Thumpr cam How lumpy IS the idle And does it not affect low RPM power as claimed. 65125mph 406 with home ported Dart 215 heads. Save on Competition Cams Big Mutha&39; Thumpr 243257 Hydraulic Roller Cam and Lifter Kit for Ford 351W CL35-602-8 at Advance Auto Parts. 1979 F150 with a 351w351w with gt40p heads, 4V QuickFuel Slayer 600 vs carb, Weiand Stealth Intake, Comp Cams Mutha Thumpr Cam (roller cam, part number 35 6. Slow the idle down to 700 out of gear and balance the mixture screws to the smoothest lean idle. Comes with a file stuffed with receipts 050 226234 Duration Advertised 286294 Gross Lift Comp Cams 13702-kit Gm Ls Series Retrofit Trunnion Kit Chevy Sbc 400 350 327 305 283 Rvhp High-performance Camshaft 420443 Lopey This bad boy is powered by Chevys 350 cubic-inch V8 engine mated to a Muncie four-speed manual transmission This bad boy is powered by Chevys. Best cam for 350 with Vortec heads Reviews 1. Buy online, pick up in-store in 30 minutes. 1979 F150 with a 351w351w with gt40p heads, 4V QuickFuel Slayer 600 vs carb, Weiand Stealth Intake, Comp Cams Mutha Thumpr Cam (roller cam , part number 35 6. The engine has an identical 4 COMP Cams 35-602-4 Big Mutha Thumpr Cam Ford 351W 2500-6400 RPM made by COMP Cams, for as low as 158 NOTES (1) On EFI engines, performance camshafts work only with mass air induction systems Very Responsive throughout Power Band of Engine Advanced color touchscreen hand-held doubles as sensor dash Advanced color. Yes, as long as it is not a hydraulic roller engine already. the lower the vacuum the higher the kpa number. 0 engines is 1-5-4-2-6-3-7-8. I then advanced it to 10-12 degrees at idle and it seems to really like it with good throttle response. 9,697 667. Part Number CCA-11-422-8. of vacuum at idle need a vacuum advance can that&x27;s fully-deployed at least 1", preferably 2" of vacuum less than idle vacuum level so idle advance is solid and stable; the echlin vc-1810 advance can (about 10 at napa) provides the same amount of advance as the stock can (15. In fact, one of the most frequent questions from customers is,. dd; gb; Big mutha thumpr cam idle speed. sbc350 out of a 72 stingray. treetstrip, needs 9. Fits &39;67-&39;76 Buick 400, 430 and 455 ; Made in USA See more product details. Big Mutha Thumpr Cam (PN 12-602-4) 295313 Duration 2500-6500 RPM Range Lift 0. The cams come in three unique grinds known as ThumprTM Mutha ThumprTM and Big Mutha ThumprTM; each level fits a more aggressive. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators. Choppythumping idle. Th T, Th&225;ng Ba 23 2022. 265, 283, 307, 302, 305, 327, 350, 383. Comp Cams 11-601-4 Mutha Thumpr Cam BBC 287TH7 Rough Idle. The Thumpr scored highest in every category except absolute power peak. Texas Speed Torquer V2 Camshaft Kit w Beehive Springs - Chevrolet LS 5. Vehicle Description. Tin mi. These Thumpr cams seem to like a little more advance timing. 65125mph 406 with home ported Dart 215 heads. Big Mutha Thumpr. They can also be useful for troubleshooting electricalmechanical equipment when it overhe. It's time for egghead theory and speculation to put up or shut up. after building the engine mechanic cant even get to car to idle, has very little to no vacuum and wont even stay on unless foot on. Go with an old comp 270 magnum or even better yet an 268h extreme energy comp cam. took it to a shop. 95 COMP Cams Thumpr Cam. A perfect choice for muscle cars and street rods, the Thumpr series&39; early i Product Features. COMP Cams Big Mutha Thumpr 243257 Hydraulic Flat Cam (12. My idle adjustments used to be -17. 51 compression, 2,800 stall, intake, gears and headers, very rough idle. 479 0. Mutha' Thumpr and Big Mutha' Thumpr cam grinds to not only make a great idle sound but also to produce a significant gain both. 486Intake Valve Lift (in. Jun 11, 2016 sbc350 out of a 72 stingray. 51 compression, 2,800 stall, intake, gears and headers, very rough idle. I've heard. E13 Comp cam big mutha thumpr roller 351 Cleveland idle and launch Ford xb 5. HiGhDRo said sbc350 out of a 72 stingray. 948 Dia. 51 compression, 2800 stall, intake, gears and headers, very rough idle. See more on my Camaro Projects - http1969camarothumpr. 549, 109 LS Ford Small Block 221-302 1963-1995 5. 525 112&176; roller camshaft kit holden (US 965. Fits &39;67-&39;76 Buick 400, 430 and 455 ; Made in USA See more product details. Had to move the water feed tot he manifolds to the back right before the exhaust went out of the hull. Attached Files IMGCruisin 2. Providing high levels of performance at street level with a fantastic stock converter, this product by COMP clams works perfectly on more than 2000 converters and. Big Mutha' Thumpr 243257 Hydraulic Flat Cam K-Kit for Chevrolet Big Block 396-454. 486Intake Valve Lift (in. High performance streetstrip, needs 91 compression, 2500 stall, intake, gears and headers, rough idle. 56's, 4 speed. They have the Thumper, Mutha Thumper, and the Big Mutha thumper. 8 5. 515, 351C, 351M-400M, Each. 500 Intake0. Problem is that engine shakes alot at idle below 1000rpm. 050 grind by a large margin in the area-under-the-curve department, holding a 10-15 hp advantage throughout the majority of the power curve. COMP Cams Thumpr Retrofit Hydraulic Roller Camshafts 12. Jul 6, 2012 As a daily driver this cam would suck big time. 51 compression 2800 stall intake gears and headers very rough idle. . yuba sutter craigslist cars and trucks by owner