Thanks for the reply
I had to replace the vacuum unit on my 75 Gremlin when I first got it 10+ years ago.
You know I am fighting that same thing for years now. I have replaced the box (ECM) so I don’t think that is it. When it dies you never have testing tools with you, well now I do but think it’s the pick up in the dist. The car is all stock 64k so I hate to start cutting it up.
Dave ----