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'69 C10 327 SBC Off Idle Stumble / Misfire Help - I feel like I've tried EVERYTHING
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10-29-2018, 07:21 PM
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AussieinNC
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Join Date: Jun 2017
Location: Cherryville, NC
Posts: 2,197
Re: '69 C10 327 SBC Off Idle Stumble / Misfire Help - I feel like I've tried EVERYTHI
As I mentioned I suspected the distributor and or module is not working correctly...
Your mentioning dropping the plug gap down to .035 and it runs better, confirms a lack of high voltage for the spark system...
To check the system, drop in a standard HEI distributor setup and retry your test drive...dont be surprised if it fixes the off idle stumble and misfire...
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