I just elongated the bolt holes on the flange for the tailpipe, allowing it to center the opening on the manifold hole. Then I let the tailpipe ride up into the exhaust manifold just a tad. Then tacked the flange to the tailpipe. Apparently very crappy or sloppy molds for the manifolds, mine from Patrick's were just like yours. Plus had to hog out the ports to fit my GMC. They can be made to work just fine. Good luck. Jim
