AC Delco Rapid Fire 2 Plugs, .035" or .045" Gap?
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From: Round Rock, TX
Car: 1988 Firbird formula 350
Engine: 5.7L TPI
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AC Delco Rapid Fire 2 Plugs, .035" or .045" Gap?
I'm installing some AC Delco Rapid Fire 2 plugs in My 1988 Formula 350. I was searching some old postings, seems to be some differences of opinion on whether to use the original gap spec of .035" or the .045" that they are set at out of the box. With my totally stock engine, will it make any noticeable difference?
Last edited by lonestar7; Jul 9, 2013 at 11:35 AM.
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Car: 1967 Camaro, 91 z28
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Re: AC Delco Rapid Fire 2 Plugs, .035" or .045" Gap?
No noticeable difference no need to over work your coil run them at .035
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