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Two things I forgot, as previously mentioned, on the 72cc Edelbrocks, the intake valve position is set about .060" further out from the rocker stud centerline, thus be prepared to shim your intake valve rocker further out by this amount. But go by clearance of pushrod through the manifold bores and the contact between rocker and valve stem. I use a piece of wire as a go-nogo guage. Also, remember to orient your head bolt washers the right way with inside bevel toward bolt and square corner toward the head.
Good luck!
Paul
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