7-750, i have not put my timing light on it in a while and i have no cat either but i should send you pics of the last set of plugs i pulled out it looked like it was running rich. i still have the plugs because i was baffled. i know not having a cat prob has some to do with it but not all of it, esp when i get 300 miles to a tank but i am highway driving at abt 80mph.Originally Posted by Barefoot
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