I was on the horn with Summit today asking about a torque converter for my 66. Told him what was in it and what my plans were. 1966 273 30 over flat top pistons 9.5:1 from what I can remember, Comp cam and lifter kit CCA-CL20-210-2, installing a 1966 factory 4bbl intake, has a 8 3/4 rear end...