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#1
09-07-2008, 08:40 PM
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spark plugs
I have a set of ACDelco CR43TS spark plugs in my tool box...I don't know what car they are for and I was wondering if I bought them for my Pontiac or not. Are any of you guys runnin these?
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#2
09-07-2008, 09:21 PM
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I am not familiar with that particular # or whether it fits a Pontiac V-8 but the heat range would be too cold for any Pontiac motor that I am aware of.
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69 Bird w/1970 400 block(409 cubes), #64 heads, hyd. roller, Q-jet by Jeff E., original interior, ps, pdb, th350, and 3.73 gears. Pump gas, street driven muscle. 3800 lbs. race weight. Best, 11.39 @118, my son's car. 79 T/A w/463, Scat crank, Eagle rods, Icon pistons, Lunati solid roller, 262/270, KRE 325 heads, Northwind intake, QF950 carb, full interior, ps, pdb, th350, and 3.73 gears. Pump gas, 3650 lbs. race weight. 10.68 @ 126 so far... no tuning yet. |
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#3
09-07-2008, 09:34 PM
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Ok cool thanks
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#4
09-07-2008, 09:49 PM
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Depending on your compression ratio, type of driving, ignition type, etc. this heat range actually be better than the "factory" spark plugs. When you start modifying the engine things requirements change. If you put them in and notice fouling, then they are too cold. Otherwise go with the coldest possible to ward off detontation.
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