Quote:
Originally Posted by speedster
Plug reading isn't quite the same on the newer motors, but it always gives you the warm fuzzies when they look good. Especially on a high HP build like your R. Cool !! 
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Quote:
Originally Posted by mlee
Changed mine a couple times and they look just like what you descrbe also.
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We are running a TR 6 plug, so being a bit cooler, I expected the buildup on the insulator, especially with not having opportunity lately to really heat them up on a real long hard pull... So, we had about what I expected... The main reason I changed them was in prep of my cross country sojourn coming up... Didn't want to have to worry about fouling a couple of them put with the less than stellar octane I'll be using...I alias the thinner air won't need the high octane, but....
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If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley
Horsepower is how fast you hit the wall.
Torque is how far you take the wall with you.
“If everything seems under control, you're just not going fast enough.” Mario Andretti
If you can turn, you ain't going fast enough...