so while modifying to try to get the most top end i could i made a 28 tooth sprocket , on 20 inch wheels , gutted the exhaust and opened up the mouth of it,, opened up the inside of the of the manifold and put a boost bottle, and ported the intake , exhaust, and transfer ports, but like an idiot i made the mistake of removing from the top of the intake and before i realized it , i had taken off enough to where when the piston is all the way down theresa a little opening. i’m wondering if that’s why i’m only getting up to 35?!? i live at about 1,200 ft above and have the clip on the card needle in the middle any lower and it 4strokes , i cut a little piece of the skirt of the piston so when it’s all the way up nothings blocking the whole and i have yet to try it but i got few new jets and instead of buying one of those billets i stuff the are around the carb opening with solder and smoothed it out to try to get the same affect. but to try to fix the problem with the intake port i ordered a new head but the sleeve didn’t come all shiny and finished looking like the other ones i’ve gotten where they look like almost a mirror, i put a side by side with my old one it looks like spray paint, it’s more rough is there a way to fix it like polish it or just get a replacement? please help?
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