Re: 72 Jimmy w/HEI Wont Stay Timed!
I would try to move it one tooth, and see what it does. Timing chain could be a possibilty, but I would almost think it's a worn out dist. See if you have a buddy that you could borrow one from and find out. That's what I did when I picked up 4tenths. I could feel a difference in power right away.
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