spark plugs
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Junior Member
Joined: Mar 2001
Posts: 49
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From: Parsippany,NJ
Car: 89 GTA
Engine: 355 TPI
Transmission: T-56
Axle/Gears: 3.73
spark plugs
How do I know if I have too hot of a plug? Will my knock sensor go off? Which plug should I go with my set up? I have delco's that AFR reccomended and the gap is at 50
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Joined: Feb 2000
Posts: 1,170
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From: Seattle, Washington
Car: '87 IROC-Z/'82 RX7
Engine: SBC 355/1.1L Rotary
Transmission: T56/5 Speed
Axle/Gears: 4.33/3.93
http://members.uia.net/pkelley2/sparkplugreading.html
I gap my autolite plugs at .045 with MSD 6AL and coil.
Too hot a heat range you'll be able to see it on the plug and ping more. Possible diesling too.
I gap my autolite plugs at .045 with MSD 6AL and coil.
Too hot a heat range you'll be able to see it on the plug and ping more. Possible diesling too.
Supreme Member

Joined: Sep 2001
Posts: 1,195
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From: Flowery Branch, GA
Car: 1985 Iroc-Z
Engine: 1 BA 305 TPI
Transmission: Probuilt 700R4 - 2800 Stall Midwest
Axle/Gears: 3.42
You can go with .05. A higher performance ignition system which you have (MSD) will allow for it.
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