Back in the day a 3310 Vac sec Holley was the go-to carbs on thousands of builds. Funny that you don't hear more about them any more. But I'd put that carb on anything from a 340 to a 440 and not worry about over carbing it or it running too fat. Great carb to learn tuning on; swapping jets in the primaries, springs in the secondary diaphragm and plates or jets in the secondaries.