Well, as for the info that I left out, it's a 4-speed car, with an 8.75 rear diff with 3.91's. Stock manifolds, manual steering. HE268 cam. When I bought the car, it had a 3310, which ran very rich and was constantly flooding out the engine. So I switched to the 670, which ran much better with no flooding issues, and tan plugs. I never really had a chance to really get on it to see how it performed, though.
flooding the engine had nothing to do with the 3310's size, but the fact that something was wrong with it or it was completely set up wrong for your car. I have a 750 double pumper on a stock 360, works flawlessly