What do I need to know to choose slicks for my race car?

That’s a beautiful red demon you have there. If I may ask is it mini tubed and what size rims and back spacing your running. I’m going to mini tub mine and was just trying to figure out how wide of rim and tire I can go. Thanks Bill.
I run a P295/65R15 Hoosier drag radial on my Dart a few of my friends run the same tire. I got away from slicks when I moved to a DOT required tire class , at first I ran Hoosier Quick Time Pros at 10 lbs of pressure , I switched to the drag radial a few years ago and I like them I run 18 lbs of pressure and the car is more stable top end. The class rules changed and I can run a slick now but I like the drag radials. My car runs high tens with low 1.40s 60 ft I run on a throttle stop to run 11.50s and my 60 ft is 1.46-1.48. When I did run slicks a radial slick was faster than a bias ply but as others have said IMO also they tend to wear quicker and can be tricky on a marginal track. I just put a new set of drag radials on about a month ago. I run a M/T 275/60 R15 drag radial on my low 15 second 92 D150 p/u they work well also. My Dart is mini tubbed , narrowed 8 3/4 , springs moved into frame rails with Cal Tracs , I run a 10 inch Holeshot wheel with 4 1/2 inch back spacing

IMG_1449.jpeg