Sam, I’m not ruling that out. Today I went back to the rubber line. It worked for a while then the car just died and wouldn’t restart. Eventually it started but wouldn’t idle. Because I have extra parts I tried another dizzy. No joy. Then I tried a different carb. No change. I was able to take it for a drive but I had to leave the electric pump on. I need to get underneath and look at the mechanical pump. That will be another day. With my back problems I strained it enough for today. Because I was using the wrong pump for the last year I’m wondering if I damaged the cam lobe.