I have a chevy 350 in my 67 nova and it is running TERRIBLE. <missing,
sputtering, and even an occasional backfire. I set my timing at 8 before
TDC, dwell at 30, and adjusted the carb (600 holley). It helped for a day or
two, then it was even worse. I checked my timing again, days later, and it
was somewhere near 18-20. I took a vacuum reading and it was steady around
12, down from 17-18.
With these symptoms what do I need to repair, adjust, or replace. I am
thinking it may be the timing chain. If it is, what is the worse that can
happen if I continue driving it. If it breaks, will my valves hit the
pistons. I am asking you knowledgable folks before giving up and going to a
shop (something I hate doing)
Thanks,
Dave P
51 half ton
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