ok i bought an Mini MGT 3.0 and i havent even got 6 tanks of fuel through it yet and i made a mistake and it ran away from me. and it revv'd hard till i could get to it and hasnt ran right since. It wont idle correctly at all either really high and when i set it it cuts out. the other problem is when i do get it idling fine and i start tuning the car it seems very rich but and its spitting fuel out the muffler like crazy but its not Rich at all and when i run it it will run then cut out.

ive taken this thing apart and made sure nothing is broken and everything is very clean and doesnt seem like anything is wrong at all. i was thinking maybe if someone knows how to Seal an engine or is there a video that i can watch so i can seal this thing. i was thinking maybe the extremely high revv has caused it to get an air leak.