Got to run bfg ta radials in the domestic class @ Atlanta Motor Speedway friday night drags. Got a 550-600 hp 383 that i got to hook up with a 4.56 gear, game plan is to run cam that kicks in around 4500 rpms and got a 3000 converter to help soften up botton end. I got a link to their website in my signature it has the rules there. I got a 275/60/15 under and i cant cut the wheel wells. What can i do to make it stick??