[&o]I have had my 1/8th buggy for 7months and I have an engine problem. When I drive the car at full throttle it starts to make noises and drops speed if I keep the throttle full the engine stops I don’t know why it is doing this it will only go 45mph and it normally does 55mph [&:][&:][&:][>:][:'(]

You have the top end too lean and probably need a new piston and liner due to wear.

either the sleeve or the piston i shot, and the needle setting might be a little off

It can also be some dust in the carburetor. I had that problem before, and cleaned it and now it revs fine.