COMP Cams Mutha' Thumpr Hydraulic Roller Camshaft - 107 LSA - Small Block Chevy Quick-Turn Fastener Adjuster Holley 50 cc Accelerator Pumps

Holley 50 cc Accelerator Pumps

6" Wide x 12"

1963-1976 Chevrolet Impala

2002-2003 Lexus ES300

AMC / Pontiac V8

COMP Cams Mutha' Thumpr Hydraulic Roller Camshaft - 107 LSA - Small Block Chevy Quick-Turn Fastener Adjuster Holley 50 cc Accelerator PumpsDesigned to deliver an aggressive, hard hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early intake valve opening and long exhaust duration create optimum overlap for that race car idle. The Thumpr grinds all require an aftermarket torque converter and lower gear ratio to ensure the drivetrain