oldkimmer said I have used a 340 auto cam in at least 6 or 7 318s from 1968-1974. 1 with a 2 bbl and rest with a 4 bbl. I with a 650 Holley double pumper. 1 with an AFB. Rest with a Thermoquad. I ran by 2.76, 3.33, 3.55, 3.91 and 4.10s. Kim Click to expand...