Unported head quickness?

70 340, rebuilt .030 with KB pistons, aprox 9 1/2 to 1 compression, stock 1:88 vave J heads, no porting, std valve job, racer brown .510 hyd cam, strip dominator intake, 750 DP holley, 904 with 10" GER convertor, 4:56 gear, 3100 lbs street/strip setup, 8.11 at 88 MPH in the 1/8th mile.