PRiedel
I have a Vortech Supercharged 302 (5 Liter). Mine has Mustang EFI. When the supercharger was added, we did not upgrade the rings and pistons. Depending on how you drive the car, you will burn up your rings with the extra boost. We rebuilt the engine this year after about 10,000 miles on the old one with the Supercharger. Runs a ton better and does not smoke any more. I would suggest at least rings and pistons as an up grade for a supercharger.
I have seen ads in several magazines for supercharger systems for Carbs. I bet someone will let you know. We used to have a Holly Pro Injection system on the car and we replaced that with Mustang EFI a couple of years ago and that made a big difference.
Boy is it fun when the supercharger kicks in.
Dick Thompson