A friend of mine that runs a 7 sec true ten five n/a combo has a shop with a chassis dyno.He has tried everything and said on a car like yours a h pipe makes more power.Now on like a mustang or a car that runs 11 or 12's he said a x pipe has made more power.hope this helps.
3120lb, small block, 10.5" tire, NA, through exhaust, full int, WITH 83/4 REAR, 9.0 at 150mph
