Proform main bodies do alot of good, they are only for 750-800 cfm carbs i think though. Cut off the air horn and blend it down toward the venturis, it will be almost the same, only difference is, the other's have downleg boosters which helps alot. No problem with painting the carb, dont worry about heat disapation, carbs like to be hot. Cool fuel doesn't atomize as well because of the inherent temperature drop that comes with vaporization.