This is the correct "400" stamped vacuum advance unit used on 67-68 Camaro Z28 distributor numbers 1111266 and 1111467. Just like the distributor Charley just sold.
There is a small ding on the outer shell of the vacuum unit.
Not very noticeable but I want to disclose it as I am having a hard time photographing it .
A very tough vacuum unit to find. Asking $ 225
Thanks, Chris
