Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a...
High performance street, stock converter ok, best with 2000+ converter and gears, choppy/thumping idle.CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti II...
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti...
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti...
Needs modified TPI w/injectors, plenum, runners, exhaust, 2000+ stall. Requires custom tuning.CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti II Base 1991-1996...
Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds....
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti...
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti...
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti...
Strong mid-range and top end. Will require headers, gears and stall. Strong Idle. Requires custom tuning.CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991...
Good torque with exceptional mid-range power for 305 and 350 TPI applications. Needs upgraded exhaust and custom tuning.CatalogUser 1This Part Fits: Year Make Model...
Hydraulic Roller - Xtreme Fuel Injection (XFI): Excellent torque for throttle body 305 or 350. Good economy with added power.; 252/264 Advertised Duration, 202/212...
Street/strip applications. 3000+ stall. Use 4.10 gears, aftermarket intake and headers. Very rough idle.CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti II...
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti...
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti...
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti...
Street/strip applications, 9:1+ compression, intake, headers, gears. 3000+ stall. Rough idle.CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti II Base 1991-1996 Buick...
Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds....
High performance street use. Aftermarket intake, headers and 2000+ stall, 3.40 to 4.10 gears. Mild rough idle.CatalogUser 1This Part Fits: Year Make Model Submodel...
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti...
Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds....
Mild street performance, slightly noticeable idle. Needs aftermarket intake, headers, 3.40-4.10 gears.CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti II Base 1991-1996...
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti...
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti...
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti...
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti...
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti...
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti...
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti...
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)CatalogUser 1This Part Fits: Year Make Model Submodel 1987-1991 Avanti...
Hydraulic Roller - Xtreme Energy: Good for towing, excellent mileage, smooth idle. Will work with stock converters and gears.; 252/258 Advertised Duration, 200/206 Duration...
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