Headed to the track tomorrow, with my pile of used junk. Here's the combo: 1967 Barracuda, 383, flat top pistons, (not new, call it freshened up). "516" casting heads, 1.74" exhaust added, ported. ElCheapo Summit .465" lift cam, stock rocker gear, Edelbrock Rpm intake, 750 DP carb. 2" TTI...