Ok last week i was driving my Tamiya TG10-Mk.1 and i came out of range then hit a fence and was at WOT until i finally got it back in range and shut it off then i noticed that i needed a new glow plug so yesterday i put a new one in and it idles great but when i give it any throtal it brings the rpms up a little and it just moves very slowly. so i was wondering if i need a new piston and sleeve or is it something else like a head gasket :shrug: