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Jim, why not really test them? 572, 15/1, 283/290 roller with .775 to .825 lift, Terminator on alky. The heads would definately be the choke point !



the MW Victors are really pretty efficient for their size, and on a 500-ish cube motor might even be better than a -1 because of the higher velocity.
but on a high effort large cube combo, i think the added area of the -1 would start to pay off.

68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads