COMP Cams Camshaft FC 295T H-107 T Thumper

If you're looking to give your Ford 351 Cleveland, 351 Modified, or 400 Modified engine that unmistakable, aggressive idle sound, this Big Mutha' Thumpr camshaft from COMP Cams is a solid option. It's designed to create a race-car-like idle with early intake valve opening and long exhaust duration, which also helps achieve notable horsepower gains and a broad torque curve. This camshaft is a popular choice for muscle cars and street rods where that distinctive sound and improved performance are key.

This camshaft requires a few supporting modifications to work correctly. You'll need an aftermarket torque converter with at least a 2800 RPM stall speed, lower gear ratios in your rear end, and a good intake and header setup to keep the engine in its powerband. Because it typically reduces vacuum at idle, you'll also need a vacuum canister, pump, or hydroboost system if your vehicle has power brakes. It's built for street/strip use and works best with about 9.5:1 compression.