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Reply to "302 Diagnosis"

I have to agree with Doug on this one. I had a similar issue when one of my pushrods jumped out of the rocker socket and sat on the edge of the adjuster. It cranked up but would not run well and because of the compression leaking back into the intake showed a 6-10 in/hg on my gauge. The only thing is I figure it would get better as the engine heated up as the block and heads would expand increasing the push rod/rocker clearance. I cant imagine it would be your head gaskets as the likelihood of every cylinder having a leak would be slim.

Blaine
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