Hey fellas I was wondeing if sumone could help me out and tell me the settings to set the rockers in my 03 400 auto arctic cat . Thanks

 

Intake cold=.002" to .004" or .05 mm to .10 mm Exhaust cold= .009- .011inch or .23 -.28 mm. At least thats the spec on my 2001 AC 500, pretty much the same motor. Check on the exhaust side of the air box, my 500 has a heat shield there with all the specs. I never looked on my 400.