Originally Posted by NitrousBIG

Keep your radio unless your going to switch to something like a KO or ..... well to be honest I dont like anything else on the market right now. Stick with the spectrum dsm, tried the KO 2.4 and though it was crap.

As for your engine, throw a new piston and sleeve at it, green slime the carb and go racing.

If you are going to switch engines and your track is rough consider the OS
19xz-b. I see guys at the track all the time with huge engines and they can't put the power down. The smaller engine will probably allow you to accelerate harder and be a lot easier to drive. You will also almost never have to pit because the engine barely drinks any fuel.