Re: 1969 C10 Idle Issues
Is your gas cap vented? Might be creating a vacuum inside the tank. Seen it happen on older chevys.
My 1967 C10 283 is timed 10 deg advance at idle with the vacuum advance disconnected and plugged. Seems to work well on the stock motor.
Agree try some non ethanol gas. Even my truck is a little hard to restart when hot.
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