Dougs

Sounds like you might have also got a set that were jigged wrong. Try checking the engine location first according to TTI's engine locating instructions here (pg 1)

If the engine is in the correct location whatever you do don't dent or even scratch them or Pertronix will say you modified them so you voided the warranty. IMO their a lousy company cause they know they had a problem and won't admit it and look for every way out of honoring their warranty.

I did center the engine per TTI's instructions. I have nearly the same setup as mopardude with a 340, x heads, Schumacher poly locks and brackets, and these doug's headers. Ive tried moving it all around, shims, no shims, blah blah blah. Header tube #1 hits the box just as it curls around the box and the passenger side header is against the T-bar just as the bunch of tubes curl around the T-bar. I do have one difference then Mopardude's setup and that's a Keisler 4l60E overdrive trans. I'm going to check to see if the tailshaft is sitting too high causing the problem on the passenger side. But I'm at a loss with the #1 tube.

Can't return these, purchased from another member on here.