Carburetor size

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.