Description
Serious street/strip effort. 383 needs 3000-3500+ stall. 440 needs 2500-3000. 750 to 800 CFM carb and headers, 3.91+ gear.
COMP Cams Magnum cams have great high rpm power, are easy on valve train parts, and can be used with mild ratio rocker arms and traditional performance valve springs. They really need converter and gear changes, these like compression (9.5:1 and up), and larger magnums are a little lazy at low rpm.
