My old street car, 1971 Duster, weighed 3450 Lbs. with me in it ready to race with full 3.0 inch exhaust to the rear bumper and air cleaner on. Ladder bars with double adjustable coil overs and a diagonal link,
M/T ET Street Radials 315x60x15 mounted on 10 inch wide Weld Pro rims. Stock gas tank with a Magnafuel 275 pump with a # 10 AN feed to the pump, #8 AN bypass and #8 AN (1/2 O.D. soft aluminum line to the regulator mounted up front in front of the carb.)
That motor was a 400 block bored to 4.375 and stroke was 4.300, Comp Cams custom ground solid roller 260@.0500 intake side, 266 @.050 exhaust side with Harland Sharp 1.6 ratio rockers that netted .700 + a tiny bit at the retainers on a set of Indy SR Max wedge size intake port heads and a Indy 400- intake and a Holley 1050 CFM Dominator.
It ran a bunch of 10.00 through the exhaust on 91 octane non ethanol Oregon pump swill, the motor made 727 HP the last time it was a decent engine dyno in Klamath Falls ,Oregon at 4300 Ft. in the spring