My screws are out 3 1/4 turns if I remember correctly. Lately I have been trying to get a good balance between MPG and driveability. I am not so much concerned about performance but it seems to be faster than it has ever been where I am right now. But my plugs are also white with a little tan color on one side. And it seems to run like it's lean too. My mileage is up to 38.5 so I hope I don't lose MPG by going to TBS needles.
I wondered why the frisbee was getting bigger......and then it hit me.
'05 BA - Mulberry/Graphite,128 mains,42 pilots,TBS needles,drilled slides,debaffled stock pipes,Uni,no snorkel
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