Thumpr Ford 3 Valve cams by COMP Cams

Testing video of the prototype Thumpr Ford 3 Valve cams by COMP Cams, this one is the Mutha Thumpr, Stage 2. These things sound wicked and make power.

COMP Cams, COMP, Camshafts, Thumpr, Loop, 3-Valve, Mustang