So I was reading up about the Coffman's 750ss rocket pipe on multiple threads. Turns out (like any aftermarket exhaust, duh) they're very sensitive to head pipe and chamber alignment. If the head pipe and chamber aren't aligned damn near perfect you'll burn out couplers, fast. I don't want to deal with exhaust goo all over my pretty engine bay and it turns out the stock chamber brackets didn't have enough adjustment! Here's what the alignment looked like with the stock brackets as far forward as possible:
I looked long and hard at the stock brackets and there's no good way to modify them to get any more forward travel. I need at least 10 more millimeters. So, I measured the stock brackets and then went to the quickest, easiest supplier for stuff to make my own new brackets , McMaster Carr. Ordered some 6061 aluminum stock in dimensions closest to the original brackets. 1.375" square stock, 6" long was as close as I could get (stock was like 1.34" tall, I doubt 30 thou will matter).
After some careful measuring and marking, plus a center punch, I chucked the aluminum stock up in the drill press.
Finished product top:
Bottom:
Chamber holder test fitted:
I only got one side done tonight. I'll get the other side done tomorrow and then lightly polish the pieces and break the sharp edges. Not to shabby for a drill press and some calipers.