Getting ready to purchase wheels and tires. I would like to run a 15 x 9 or 15 x 10 275 /60/15 or 28 10.5 15 . I am not crazy about putting that wide of a tire on a 8 inch wheel. I have calvert racing split mono leafs +1 inch ..... 9 inch 57.50 wide about 1/2 inch wider on each side than stock . I have trimmed and rolled fender lips and removed the snubber inside wheel well. The car will be a street /strip 500 to 600 hp windsor /C4 powered .My thought is if 15 x 8 with 4 inches of backspacing with a stock 56.5 wide rear end works , then a 9 or a 10 inch wheel with 4.5 inches of backspacing should be fine, I tried the plastic wheels and tire simulator and it should be fine. Dose anyone have this set up or something similar. I would like to buy the wheels once . I sure you guys are getting tired of answering these type of question, but any help would be very helpful.