383/400 stock stroke recipe's!

383
stock forged crank
stock rods
.040" over cast pistons
8.0:1 compression
4150 carb
stock 383 victor intake
ported 906 heads
Racer Brown straddle roller from 1978
524 HP

Pulled the heads, intake and solid roller, substituted hydraulic roller, M1 single plane and mild 902 heads and it's now in the grandson's 4x4, 4spd manual, 3/4 ton pickup. 95 mph in the 1/4