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i get tr6 too my a/f is 14.5 when cruising and 10.5 wot but i blew all 8 plug in 3000 miles im now asking if im not going in a hotter range?!?!

i will follow this tread and hope someones with more experience than us can give an answer...
 

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it could just be the tune. I melted a few tr6 plugs, then switched to br7ef plugs and melted those too. it ran like crap after that so i pulled the motor apart and found a melted spark plug boss as well
 

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edit; it was not the range of spark plug but the way i set up my mass air flow.... he got turbulance and cant read right so the car was nasty.... this car is a weekly school lol
 
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