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Has any one tryed a raptor advancement key in a 2004 grizzly i have a extra one from sparks raceing was going to try it if it will work. we had good power increases from it in the raptors....??????
 

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haven't ever thought about advance the timing on the Grizz. I know that I have advanced the timing on my Banshee 4 degrees, and it made quite a bit of difference..
 

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i would like to know what happens
 
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