GM HEI Dist. curve kit?? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 09-23-2002, 05:30 PM
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Post GM HEI Dist. curve kit??

Have a GM 350 HEI dist.that the bushings in the weights are worn out or gone. Went to the auto parts store for new bushings and they sold me a curve kit hopeing to just use the bushings in my old weights,but won't fit old weights and have to use new weights and center plate. Wants to know if dist.turns clockwise or counter clockwise and then has 3 pairs of springs????
Not sure what set of springs to use. Would like to keep advance curve as close to stock as i can?

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Old 09-23-2002, 06:12 PM
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Go to the GM parts dept. they still sell OEM parts for HEI distributors.
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Old 09-23-2002, 06:17 PM
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Thanks; I will try that.
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Old 09-24-2002, 05:40 AM
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i would have the HEI rebuilt with the advance curve you need. I say have it rebuilt by a pro to fit your motor, takeing into account the changen vacum from a different cam, mabe different compression ratio and rpm also?? so why would you want a stock timeing curve??

just as well do it right when you are dooing it anyway

[ September 24, 2002: Message edited by: deuce_454 ]</p>
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Old 09-24-2002, 07:48 AM
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Most kits will have a spring close to stock, usually the middle tension will be close to stock. But, like deuce stated why stock curve. If my memory is correct the lighter spring will advance the time quicker starting at 1000 making full advance about 6500 and the heavier spring will start advancing timing about 2500 and full advance around 8000. Remember this is from memory, the kit should give the ranges.
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