Can anyone tell me the carburetor cfm rating on a 68 383 335 hp motor? That is what is in my 65 Coronet. I am currently running a 600 cfm Edelbrock Perfomer AVS with aluminum intake, headers, 284/284 ?camshaft and electronic ignition, and 4:56 gear. The intake is an ancient Edelbrock dual plane (25+/-year old). Should I go with a bigger carb? It seems to flatten out in 4th gear..........Warren [Non-text portions of this message have been removed] ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.