Max street effort. 383 requires 4000+ converter. 750-830 CFM. 4.30-4.88 gear. 440 needs 3500+ converter. 800-850 CFM carb, headers. 4.10-4.56 gear.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov