My 2008 roketa 250cc

[PhillyRich]

Hello everyone

I have a 2008 roketa 250cc I'm looking to do some upgrades but not really sure which ones are the best for wat I'm looking for the top speed is suppose to be like 65 - 70 I've been able to get it to do 50mph on back street it has good throttle response it takes off pretty quick here are some things I've done to it I changed stock air filter got one like them k&n filters which created a problem my back wheel now moves when on the center stand it didn't do that before I changed air filter I've played around with idle screw and that really didn't help my exhauast is loud to I think I'm missing a gasket but want to change that to just haven't really found one for my scooter or a good price and ideas on this will be good like I said before I would like to go a lil faster and make smart and best upgrades for my money o I also installed a boost botter that I really didn't see any improvement and tips well be gladly appreciated

Thanks,
PhillyRich