Going from a flat solid 260/264 @ .050 with .628I/.633E lift to a solid roller, 260/266 @ .050 with .660I/.641E lift. Both having a LSA of 106 in at 102.

Pump gas 408, 10.9-1 compression, ported Edelbrocks, Victor 340, Bigs 950HP. In a 3260 (with me) 69 Dart, 727, 4.10 Dana, has ran several 6.57s in the 1/8 and 6.70 in street trim. According to the on line calculators it's in the 540-560 hp range.

Any educated guesses?