I love American Racer Tires for sure! We use them on our Sprint Car stuff and they work great!
We used to run the SD44 on the Right Rear when I raced Mini-Sprints and I think that is a great choice for you and even a 48 if it is abrasive. Left rears either a 33 or 38. Right Front 44. Left front 38. I believe this will get you going!
Sipe the right rears if slow slick.

Good Luck!

J.T.