If you didn't call, call and talk to Kenny. Give him all of your car's specs and what you're wanting to do with it. With enough stall a 9.5" will work great. I had a 9.5" Edge Racing Converters that flashed 5400 (do you know how to check the flash?), my car went 6.57 in the 1/8 with it. Unfortunately, it didn't last but about four years behind the 408. In the converters defense it only cost about $450 and made a bunch of 1/8 mile passes, in a street car it would've lasted a lifetime.
