Just another 2 cents :
Since running the car I've set the idle and timing to 15btdc. Ran it for a week or two, it bogged, hesitated around 5k rpms, consistency wanting to die coming to a stop, hunting idle sweeps, etc. Since I've gapped my plugs to .038 and changed my base timing to 10btdc. After making the timing change its ran beautifully, no stumble at 5k rpms, no hunting idle, and it idles beautifully. Even from a 4.5k rpm drop to idle it hits 1krpm then rests nicely at 850rpms. Start up time was also cut in half.
If you are having similar problems its worth a try.
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