I was having problems with mine as well msd sells a adapt a cap for the pro billet that lets you run a ford cap.I had no further problems after the swap.
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1969 GTO street strip project 11.1 forged 461, highport heads
1995 Trans-am 420 ci sb 14:1 compression 9"ford
9.89@132 1.34 60ft SOLD!
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