Ive rode a 90hp raptor, and a 115hp ported 7mm serval. No matter what you do with a serval of your size, are you going to beat that bike. Your engine would make more, better, usable power and be faster in a drag race, if you sent it to a builder thats done 5x the builds as the guy you stopped in to see. Tylers engines came from the guy you should have set it up.