Elboogie-Scotty and Boomer dont Check for width, as long as your wheel dont stick out the side of the body like a REDNECK 78' Camaro you will be GOOD. I ran at IIC last year and width was not a issue, weight, wing height and ride heighwas it you can shave your wheels down on the tire truer, i do it every year at the Snowbird's.