Serious street/strip effort. 383 needs 3000-3500+ stall. 440 needs 2500-3000. 750 to 800 CFM carb and headers, 3.91+ gear.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov