Quote:
Originally Posted by Lemans64
Bad plugs or wires?? If it idles bad you probably have a misfire. Can isolate by pulling wire and check for idle rpm difference. Also check for distribtor cap for
carbon tracking, or corrosion inside cap. Burnt center electrode in cap. Just to name a few,
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This. Misfire. Put a vacuum gauge on it to rule out a burnt exhaust valve. When my '67 did this same thing years ago it was a burnt exhaust valve, and I've seen it happen quite a few times. More likely a bad ignition wire, etc. Vacuum gauge will point you in the right direction!