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Old 04-29-2009, 08:25 PM
cunningham cunningham is offline
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327 Chevy tuning help

I just installed a new HEI distributor in my stock 275 horse 327. Does anyone know if the R45 plugs are okay for this? Also, since it is an HEI, does the plug gap need to be bigger?

Thanks!!!!!


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Old 04-29-2009, 08:46 PM
johnnya johnnya is offline
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I think you should increase the gap to .045", but I'm no expert on HEI's.
JA
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Old 04-29-2009, 09:16 PM
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carsavvycook carsavvycook is offline
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R45 should be fine with a gap of .045, if it is a stock coil in cap GM HEI.
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Old 05-03-2009, 08:18 PM
cunningham cunningham is offline
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327 Chevy question

Thanks to both of you for your replies!!!!!! It runs great with that gap!!
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Old 05-03-2009, 08:29 PM
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It's just an aspect of fine tuning that gets overlooked.

I joined here to help, and I am glad it worked out for you.
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