E7 cylinder heads

[88workcar]

I can not give you the info that you want. But I will say this. My car ran 12.60 @ 108 with E7s. I have 1.94/1.60 swirl polished race flow chevy valves in them, and they have been shaved .020. I ported them my self. The first work I ever did was gasket match them and remove the bump. This alone gave me 3 tenths and 3 mph. Later I put the big valves and a B cam. Now that I know a little more. I have unshrouded the valves and bowl hogged and polished them. I have also changed to an E cam. I had a set of Edelbrocs but they are gone and I WILL go faster with my old irons. I would say that the POWER HEADS in calf. have to better than the ones I have. For the price they are hard to beat.

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Jason B Johnson 88LX,speed density,edel heads,4.30s,B-303,cobra,tremac,
12.38 @ 111.28 1.80 60ft 28X10 street tires
12.17 @ 112 26 X 10 slicks