4846S compitition thermoquad

4846S = 850cfm 4847S = 1000cfm, these have press in jets.

4846/4847- SA -models are later models with screw in jetting

I think these are the early 69/70/71 carbs with the angled idle air screws. Jets are very hard to find and expensive. The 1,000cfm carb was a bit finicky on the street, need to keep idle rpm higher. They probably wont run much better than what you have if your happy with your carb.