I used Gardner’s full exhaust package on mine, and they look fine. I posted some measurements and a bunch of photos in my thread, starting on page 5 or 6 and continues for several pages with lots of photos. I had to do a lot of tweaking to get the tips to look the way I remember them looking on the 74 I bought used back in 75, and finally got everything adjusted so that it fits and aligns just as it should.
http://forums.maxperformanceinc.com/...d.php?t=802788
BJ