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Re: Puff/Miss in exhaust.
I would start with an ohms check on the wires, how old are they? Check to see if wire numbers 5 & 7 are touching anywhere. As they run next to each other in the firing order they could be cross firing, this usually happens under light load but could happen at idle. How old are the plugs, cap, rotor?
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1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner.
1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components.
My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703
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