Dyno Pull.wmv

Cale's 1979 RS Camaro, stock 195 HP 350 crate engine, Edelbrock Performer 2101 intake manifold, Rochester Quadrajet Carburetor, Hedman Elite Hedders. Good starting point for some power adders!!

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Rochester Q-jet vs Edelbrock Carb

After Edelbrock Carb Fail, Bearings Replaced - Reinstall Engine 1967 Pontiac GTO Restoration
After a new Edelbrock Carb failed after two hours of break-in a float sank and a jet stuck, causing excess gas to be emitted into the pistons and the engine oil. The viscosity broke down in less than ten minutes, and the engine started clankin'. Here we've just re-installed the motor after replacing the bearings and oil pump, and the initial firing and run is recorded.

The Infamous Quadrajet Moan
Making a full-throttle pull on the chassis Dyno with our 1972 Pontiac Trans Am with 455 H.O. engine.

LS6 454 Dyno Runs
LS6 454 ready to do battle with the Dyno. The runs were to develop peak torque and horsepower. Three fuel delivery systems were used. The startup was done with an 800 CFM Holley Spread Bore. Next up was a 750 CFM QuadraJet which is a 71 454 carb that will go back on my 71 SS 454 Chevelle. Finally a FAST Electronic Fuel Injection system was installed and the computer set up completed. The Fast system is capable of 1000 CFM. The rotating mass is balanced. A Mallory HEI distributor provides the spark. A high rise dual plane GM aluminum intake # 1236416 feeds the air/fuel to the GM oval port performance series aluminum heads. Icon forged pistons with an 18cc dome are attached to eagle H-beam rods. The crank is the original LS6 forged and cross drilled part. Valve train is a custom grind comp cams hydraulic roller with roller tip rockers part #11-00-8. Grind # CB 3354B/33558 HR110. Gross valve lift Intake .548 Exhaust .548. Duration @.006 tappet lift Intake 285 Exhaust 292. Valve timing @.050 Open Intake 7 BTDC Close 43 ADTC. Exhaust 50 BBDC 6 ATCD. These specs are for a cam installed @108.0 Intake Center Line. Duration @ .050 Intake 230 Exhaust 236. Lobe Lift Intake .3220 Exhaust .3220. Lobe Separation 110.0. Oh before I forget what were the Dyno numbers? The engine ran very strong all day. The fuel delivery systems were a good match for the engine and the results were very close. The Holley results were the highest, Max torque was 567 ft/lbs @ 5000 RPM & 562 HP @ 5700 RPM. Torque came on early, 479 ft/lbs @ 2600 RPM. Thanks to Automotive Machine Services and Albuquerque Dyno Service.