The right heads sure can make a big difference. Some TA STG1 SEs knocked .6 off with the same build otherwise for me. Still trying for some 1.6X' times though. Best yet is 1.70.
Comp is 10.3 .1.. runs on 91 all day!.. Well I had pretty good heads before with my iron heads and 9.3 .1 and flat hyd cam.. was good enough for 12.80's!... But this new roller /head package flat rocks!!
