1.engine cubic inches times desired top RPM 2. this # divided by 1/2 (intake strokes) 3. this # divided by 144 (cubic inches to cubic feet) 4. this # times 120% 5. this # divided by 2 (# of carbs) 6. take this # and go to the next common size carburetor (probably 650s) ************************************** See what's free at http://www.aol.com. [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! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.