Thorley makes a great set of Tri-Y headers for the AMC V8 - I've had a set on my CJ-7 for over 10 years with only an occassional tightening of the bolts. I have never blown a flange or collector gasket. The same cannot be said for the POS Heddman fenderwells that were on the -7 when I bought it. Down side to the Thorley's is that they are as low as the rear sping mount on the front spring.

I believe Edelbrock makes a set of shorty headers for the AMC V8 now. Neither the Edelbrocks or Thorley's are cheap.

Brian