I had performer heads with a E cam i was doing low 13's and the E cam did'nt really make more power than the stock cam, i only gained 3 .10s with it. Please Please do ur self a favor and get the B cam with 1.7 rollers thats what im using and now im in the high 12's with a stock
tranny, or u can go F cam if u already have 1.6 rollers, and those heads are great u can rev em all the way to 6000 plus rpms with no problem, Im using a GT40 intake, but once again ur gonna a lil bit with that performer cam, use the B or the F