Last time. The more people you ask about carb size on a tunnel ram the more different answers you get. Im pulling the trigger on the carbs this week. Getting the Holley ultra xp carbs. Talked to Mark Whitener and he suggests 750's. I always take Marks word for anything about carburators, but 750's seem to big. Called Holley and they suggest 600's. i'm thinking 650's.
Holley pro dominator t ram on 410ci sb 13.3:1 with a 7-7500rpm ceiling. 5200 stall and 3300# race weight. i'm more concerned about not over carbing between 5200 and 7500 since that will be the usable range. Thanks