398hp 501ft lb at 4300 rpm on an engine dyno
74' 454c.i stock crank,rods,and pistons. decked the heads to raise comp to 8.3-1, custom ground comp cam on a 108 lobe sep .488 intake/.502 exhaust lift. holley dual plane intake, 1 inch carb spacer, 750 speed demon carb,hooker supercomp headers into flowmaster mufflers. This setup is in my 78 chevy truck and with a 3.08 gear and a 30.2 inch tall tire i can get 13 mpg outof it.