HOLY SHIT!!!!!! 45 mph!
Finally got my hpi to spark (ended up that I had some little metal shavings between the magnets which was working as a kill switch). No time to tune threw in my biggest jet and rode a 70 mile myrons ride. Atleast a got to break the rings in a bit.
Basically it just hit a wall around 48 mph. Don't think it's gearing cause it didn't lose power up hillls.
So many things to try. Pipe that no one has ran, hpi that hardly anyone uses, reed cage that no one has used. Gonna start with jetting. It's SUPER rich. Then I will try gearing. Hit almost 50 without ever getting on the pipe. Go from there. Lots of tuning to do.