working on another induction option. 511 with 12.5:1 compression a 270@50 SFT and an Indy 400-I4-15 t ram. Street/strip deal, which carbs would give best all around performance, 650,660 or 750? I see most like the 750's and there are some that like the 660's. My thinking is to err on the small side with the 650's. It seems the Indy tunnel ram has a very large plenum and I thought maybe the smaller carbs would help crutch this on this combo. 5100 stall and car weights 3380#. Appreciate your opinion on this. Thanks