[GaryC]

Who made the black Jack headers in the 70's? I can remember. I bought a set for my first Z in 75 and painted them white. I Googled but didn't find anything on vintage Black Jacks but did see something on I guess newer versions? Would they be the same as the vintage? I have a set hanging on the wall of my garage that has the 2 loops on the top of the flange and they do look like the Dynomax I've seen.