AC Delco Rapid Fire 2 Plugs, .035" or .045" Gap?
07-09-2013, 10:02 AM
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Car: 1988 Firbird formula 350
Engine: 5.7L TPI
Transmission: 700R4
Axle/Gears: 3.27 Nine Bolt
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; 07-09-2013 at 11:35 AM.
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