Oh ya thats normal... The 2nd one i bought seemed to have some extra umph that the first didnt. The Carb and engine just seemed to work good together.. But overall they are pretty slow... If you get a HP carb and Pipe you could add a little more speed.. Then...... lol there are all kinds of mods... Rocket key, Porting, Clutch Mods, Flywheel Mods, "Blueprinting", Walbro Carbs and some real extensive mods to make that thing go faster than probably safe.. lol Get reading.. All Depends on how handy and mechanically inclined you are.. Your Engine is the same or very Similar to the X1, X2 and Zenoahs and its a piston port engine... if your gonna do a search on Mods..
N!ps
