I will have to measure to be sure,but if I am not mistaken, I took of 7" off a stock width abody 8.75
Made it perfect for a 10" wheel with a 4.5 back spacing to fit right in the middle of the wheel well.
I talk to Denny (great guy)at Moparty, he said the dougs I have on my early a will fit with his front end, but he also said that ebody headers will work without being a two piece header.