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plug heat range....



gotboost3 said:
running a 3.4 are AL104's too cold can i get away with 505's? i wanna improve my mileage...
Click to expand...

The colder the plug - the more your MPG's will suffer - especially with few mods (like you). I'd go with either 605's or 606's. Oh yeah, you might want to tune it as well. :cool:

-Swash
 
ill try it after the tune thanks swash...im def knocking right now lol so we'll see when im knock free if i go one heat range higher if i knock thanks!
 
If you are having some one tune your care once you get your fueling down you can bump of the timing in the cruising cells and that should net u a little increase in mpg's.
 
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