Ok, thanks that makes sense. ON side note, one quick question.
I have some 69 chrome valve covers off a 69 grand prix 360 hp 428 cid that has no drip rails at all, nothing inside them.
I was hoping to try those ones on my #64 heads that have H.S. 1.65 rockers. and chevy screw in studs. hopefully they fit, i feel like changing it up.
I wonder , do people still use cork gaskets? What is the alternative ?
pic is the current ribbed after market type ones on my engine.
thanks again everyone .
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69 Gto, 390 posi gears,th400 w/jim hand converter/406 pontiac/#64 HEADS/ 10:1 compression/ 190 PSI with/ TRW 160 thou domes / hooker headers 1 7/8, PRW 1.5 rockers, 405 Crower Springs, Holley 750 vac with proform upgrade, Performer RPM on points / 284 H Single Pattern Crane
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