In a 4500 pound pickup.
3.73 gears, TH350, stock torque converter, 625 road demon, 31x10.5-15 tires
355SB 9.3:1 XE250H cam 882 heads 404 Lbft @3000rpm 316hp @4500rpm
355SB 10.35:1 XE268H better gm heads 407Lbft @4000rpm 369hp @5500rpm
both would be run on 91-92 octain.
