Having trouble removing the p/s box in my 72 dart. It is a 318 with hooker competition headers. The headers are off the heads but will not give me good access to remove the box. The exhaust system is welded from the headers all the way back. I have the box out of the place it is bolted to but can not clear the header. Any one have ideas? If I massage the inner fender it will probably come out. Thanks for ANY ideas??