I have the lsx swap 1' setback plates. and seen a few guys used the cheap 'o eBay headers. So I grabbed me a pair. There the long tube hearders. 1 7/8 primary's 3 inch collectors. Anywho. I tried to test fit them. And there seems no way to get them in there. Any one have any good tips in installing long tube headers. Going on a 1987 Monte carlo