I had Larry do my heads with basicly the same figures. At 455 cubes my cam is 290@50 & i have a 1200 cfm Dominator but use a 5800 converter, same 32x14 slicks, but 4.88 gears & I rev to 8000 rpm in a 2900lb car, I was able to run 9.2@142mph. I think you need to rev harder but with your combo I'm thinking 9.5's.