Well I can only give you actual on track numbers and the specs of my '71 stock 340 Cuda from 1983. Weight 3600lbs+/- a few at the line. Additions from stock were>
Ally dual plane intake, (can't remember which one), 750DP, DC. .484/284 purple, small tube hdrs. Stock springs with clamps on front seg, long shocks and pinion snubber, 3.55's w/8x26 slicks, 3500 verter, used to pick a wheel up...would run consistent to within 1/200ths at 13.31's@101, that = 302.44flyhp w/alternator etc.
Add to that a few yrs on>
Same stock 2.02 heads, Holley Strip Dominator int. 850DP, DC. 590" solid, 1.75" race hdrs, 4200 verter, 4.30's..10x28 g/years and perhaps 50lbs lighter, car went 12.39@108+ as a best and consistent 12.4's = 366hp.