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I also like NGK or Autolite racing with the strap cut back.

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i wonder which has more ZDDP (zinc) content.. champions or autolites?

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And everybody knows Budweiser in the bottle is the best beer out there.

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the best beer in the world only when its brewed in canada eh...

for the REST of you as far as champions suck(ing), if your engine isn't up to par tune wise,
yah.. champions are not very forgiving.

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i wonder which has more ZDDP (zinc) content.. champions or autolites?

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And everybody knows Budweiser in the bottle is the best beer out there.

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the best beer in the world only when its brewed in canada eh...

for the REST of you as far as champions suck(ing), if your engine isn't up to par tune wise,
yah.. champions are not very forgiving.

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Ok well if we include our Canadian friends in this, "real" Lablat's Blue is mighty tasty too.

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Yep Champions are junk, thats why they were the OE plug when these cars were new. I think your problem is running a resistor plug in that motor in the first place. Find a non-resistor plug in the heat range you want and try that. I run old NOS J11Y Champions and have never had a problem. But you pick any manufacture you want and find out for yourself which one you like because anytime somebody asks about spark plugs on here you get a different answer. Its about like asking which beer is the best.

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the champions that were installed in the 60's/70's are a much better plug than the new champions , never had good luck running that rj12 in anything either .

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My GTX with a fresh 440, about 9.5:1 compression, stock everything except the Mopar 272 cam fouled the RJ12YCs like crazy. With the timing set at 6 degrees or so initial I think it would have been fine, but as soon as I advanced it to about 12 or 13 you could visually see the dark smoke start to pour out of the exhaust pipes. I think theyre probably good if you tune your car to stock specs/

The Champions I put in my 273 to replaced the fouled Autolites in it fouled up within two days. I changed the points, condensor, rotor, cap, adjusted the timing to a tad more intial than stock. Pulled the plugs two days later to change them (I had been driving the car) and they looked like I just pulled them fresh out of the box. Tune them to stock specs in a stockish engine and the Champions are probably perfect. Thats why the factory liked them.

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After reading all of these posts I would like to add one overview. If you are fouling new plugs there is something wrong other than the plug brand. All plug manus make good products. I prefer what I posted for a couple of reasons but none are because I don't think Champion makes a good plug. If you are fouling your plugs on a mechanically sound motor you are either using the wrong heat range or you have tune up problems. -Bob

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Exactly my point before

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hi everyone been runing the champions rj12yc which edelbrock recomends but they're getting a rust color on them my specs on my engine are 440 .55 over 11 1/2-1 bme aluminum rods .620 solid roller 6 barrel set up with orange box ignition msd coil and wires never had this color before any help
thanks guys

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After reading all of these posts I would like to add one overview. If you are fouling new plugs there is something wrong other than the plug brand. ....If you are fouling your plugs on a mechanically sound motor you are either using the wrong heat range or you have tune up problems. -Bob

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i said that earlier in this STUPID thread. perhaps the masses will listen to you.

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I can't believe this thread... just goes to show...there's those who know...those who think they know...and those who don't even suspect.
Come on you guys...really

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