Here's something i would like to ask about 2 different combos requiring different jetting: Doms 470 requires more jet than my 511, why? Dom's 470 with RPM's ported, 12:1 compression, solid roller 274/280@50-.440/.427LL on 108- 61* overlap, M1 t ram, same 650 carbs as mine(1.325 venturi) 82 jet squared fenderwell header. My 511 with E MW ported, 12.5:1, SFT 270/276@50-.403/.410LL on 110-53* overlap, Indy T ram, same carbs as Dom 650(1.325 venturi) 78 jet squared , inframe headers.
I would think the bigger cube higher compression motor would want more fuel, not the case. Can anyone explain why?
Dom sees mid 12's on wideband in 66* weather and i see mid 13's in 50* weather WOT. My jetting should be close when the warm summer weather comes back here in Michigan and would expect 13 O range WOT.