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Message: [QUOTE="ETS, post: 901695, member: 17978"] If it were mine I would get rid of that milled head. Or send it to Eric and let him tell you if the squish band, cylinder base, and such has been modified or how much was removed from the head. Theres a lot of places around that are to quick to remove material and not really know what they are doing. Besides that, why run race gas if you don't have to. I mean certain levels of competition it might be mandatory but the average guy isn't gonna use the pump gas power. Your decription sounds lean on the bottom end but I don't believe that with a 52pilot and .5 out on the air screw. Mine with a 42 pilot and 1.5-2 turns out runs fine. Is it getting to much fuel down low causing poor response until it gets into the needle and cleans out that extra fuel? Do you think it might have gotten some sand in there to cause the pitting? Doesn't take long for a little bit of sand/dirt to make a mess. You should easily determine if the powervalve is hitting like studboy said and you should be able to tell if the rings can grab a port. Did you happen to mic the piston to cyl clearance? Just curious how good of a job the platers did. Just because it was new doesn't mean it's always right. I'm not a big fan or porting as I've had several failures with snowmobiles with ported/head cuts. But.. I just sent my cylinder this morning for my 01' to Eric for low/mid porting. I've heard so many raves that I thought I would give it a try. I don't want more power, I want to move the power where I need it. In the snowmobile world more is never enough so I think this is a different game and should be just as reliable. I hope. [/QUOTE]

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