Scream'n 318 ?

11.5-1, Howards solid roller in the 250-260 range, .560ish lift, tunnel ram with 660 center squirters, and the biggest headers you can find. Get the valvetrain wire tight and balance everything. Maybe coat the piston skirts, use 11/32 stem valves, and hold the eff on. What car? 4.88 rear, 28” tire, 8” converter.