Victor, standard port with 11.2:1. Victor intake 1050 Quick Fuel carburetor. Roller cam 275/282 @.050 & about 0.660 lift. Hughes rockers, pump gas, 10.03 132.55 in a 3280 pound Duster. 451 low deck. Pro Parts headers and they fit very well. Looks like I guessed about right to keep away from some of the requirements to run 9's.