raceman14 wrote:172# on stock hyd lifters seems pretty high. I am not a Ford guy but my Outlaw GM crate stuff will turn 8200 with 135-145# on the seat, hollow stem valves stock but still way less pressure.
Also I think you are off some on the plugs. I try to run an 8 range NGK with no more than .035" gap. That wide gap stuff will mess you up and cause skipping. I would set timing about 32* and see what happens.
What plug are you running now and what gap? Is it a washer style plug or a bevel style plug and how long are the threads and how much porcelean can you see sticking out of the plug and how much goes down into the plug???
I might have missed it but what is your fuel pressure? I don't run more than 5-7 on anything up to 850HP+.
BigBlocksOnTop wrote:Check and make sure the gas cap is vented. Check the center electrode in the distributer cap...its carbon and the MSD's will burn them up if it is not the MSD carbon electrode.(I'm going to make mine from brass) Valve springs.
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