My Olds was punched 60 over, oil restricters in crank and cam bearings, balanced, flowed the heads and valve work, middle size cam, torker intake with a over sized holley with reworked smaller fuel jets, mecahnical fuel pump,
7 quart oil pan, Berekely pump with an A impeller and she will run 5000 rpm without any problems and this is my 3rd year.
2sav
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