For 9:1-10:1 compression. 383 needs 2500 stall. 440 needs 2000+ stall. Use 700-800 CFM carburetor, headers, 3.91+ gears.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov