so 70 raptor piston port, slighty ported intake exhaust transfers,
21 phgbbhgbghgb, with a 92 main jet. no air filter. handle bar intake.
has super great low end, pulls hard to about 25 then kinda four strokes then after about 7 seconds it hits hard and pulls to about 40 and flattens out.
what is the middle thing, do i need a different middle jet?
who has a 70 kit on their bike, how fast are you going? using stock carb?