Headers for Indy 440-1 Heads in a Duster??

My victor knock offs have raised ports, and I run a used set of TTI headers I bought off a guy from Witchitaw, K,they are very close everywhere but fit. I do have an aftermarket front end w/ no torsion bars tho.
Ive got the torsion bars gone as well, but even now the passenger side inner fenderwell will get touched on occasion by the header when revving. And TTi says the 440-1 heads are 5/8" wider and 7/16" raised which in my car wont work asis.
Bob are you using motor plate or mounts?