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Discussion Starter #1
plan on changing plugs in my truck this weekend and was wondering what ya thought would be my best bet .. A429 head, 514, msd pro billet dizzy, 6al box, blaster 2 coil, taylor wires..

motor is 9.8:1 comp, 90% street use, pump 94 fuel

should i run a regular plug or can i run a race plug with so much street driving? and what part number ?
 

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I wouldn't call Champions "JUNK", they work great in a "SLO-PAR"!
 

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Discussion Starter #8
what number ngk? and should i run a regular plug or race plug?

Copper, Iridium,Platinum..

right now I have motocraft plugs in it and they have worked pretty good but if there is something better id like to go that route..

Thanks
 
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