Supersonic indeed!
Now for the questions?
What car is they on ( 69 Gtx or 68 runner ) and why SO BIG?
If an exhaust valve is approx. 1.81 diameter in a good wedge motor then 2.00 ‘OD’ pipe should be plenty?
Would this design work my 71 Gtx (512, 440-1) and how much for another set ( please ) lol...
These fit my 68 Road Runner,
As for building a set for someone else, I just can't do it. One is time, and the other is I have a coworker do the final welding. Not that I couldn't do it, but I don't want that pressure.
