Yep, it's factory. I'm building this one just like the one I bought new in October of 1972. My original one had those stripes.
Replaced the Summit Turbo mufflers with Dynomax Super Turbos, 14" long. The Summits had a lot of drone but sounded nice outside. I also added an H pipe using the Summit kit. That kit is nice if you're thinking about adding the H pipe. Here's a sample of the sound with the Dynomax and H pipe at idle.
Yep, and I have you to thank for the short block. It's had a lot of work done to it.Perfect. H-pipe will take a little pitch out of the Chop but will still sound good.... Crazy to think I met you when that car wasn't anywhere near complete....
JW