Carburetor cfm calculator
Don't discount the holley spread bore DP. I came upon one for $20. Bolted it up to my 340 with a Strip Dominator intake and it blew away my Edel 750. Ended up giving that edel to my friend. Tiny primaries, huge secondaries ala TQ but with full secondary control at the pedal, no air doors. Idled like an easy chair too. Cant remember what I did with that jem, I think I sold it to finance my dual 390's then onto a 650 Demon (mistake!). EFI from then on