lean it out bro, what % nitro ya usin

I broke mine in with a gallon of high oil content 15% (cool power), now I use a byron 25%. I have ZERO problems and it runs liike a stud even when I run it safe and fat (210")

as for the stock fuel line i had no problems with it, changed it because I bought some fancy red stuff for shock stops and had extra, so i plumbed the motor

I would reccomend a head though, the stock one is a little on the small side