Not Ranked
I recently went to rocker shafts. I had number 7 bolt would not tighten the rocker shaft down. So I put a Jergens like Helicoil in and fixed that. Edlebrock had recommended that. I will get a new pushrod and have a FE racer guy coming to help. I recently replaced head gaskets with a .040 thickness on the new ones. Heads were cleaned off removing .004. So I think this added .036 in (less whatever the Felpros were). I am thinking the difference or change is in there.
Phil
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