400/511 11.3:1, 270@50SFT .650 , MW Edelbrock looks to have same chamber design as the 440-1 by Indy. Reading my plugs mine likes 35*-37* total. Have a short curve in it with 31* initial 36* total and all in by 2500. Havent ran it yet to see what it wants exactly. This is 99% street driven.