Which plugs work best!?

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03-22-2008, 01:03 AM

#11

Black Plague

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Quote:

Originally Posted by Black Plague

Dude I havent felt a better smoother plug than A/C Delco 41-985 Iridium's! I run them in my truck & WS6! BTW I gapped mine at .045! Try them you wont be disaponted and you wont have to change them for a while a plus when you have longtubes

To quote my own post I have used the NGK TR's they are good at first but suck for longetivity! The factory plugs suck go with the A/C Delco's part # 41-985 man then you will have no complaints

even if they say they are pre gapped check them I bet they are all over the place!!! My truck has .045 my WS6 uses .050 SOLID

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03-22-2008, 02:56 AM

#12

TX Tahoe Z71

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I just put in a set of tr55's at 80k miles and my truck idles better than before. I like them, but can't comment on longevity though. They were also less than $13 for all 8, hard to beat that.

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03-22-2008, 12:14 PM

#13

joeyc125

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i tried the tr55 in my truck, gapped them at .045 then .060 and it ran like crap, then i ponied up and bought the stock ac iridiums at .040 and it runs smooth as silk. maybe my truck just didn't like them but i had terrible misfires with the ngk's. plus my stock ac's had 85k on them and looked perfect still. just my thoughts