I have a 1989 272 Sr1 with mild 454 with stock 330 bottom ends with reeds cams around 535 lift large round port heads stelth intakes and stock HP 500 800 holleys with stock HP jetting what should I jet these to seems to use a lot of fuel for mild 454 please help me thanks Pete

Wow, that sounds like an impressive engine combo. Never seen someone put reeds in a big block chevy before...