Hello all i need some help i have been trying to tuned my nitro engine it has been broken in i reset the needs to factory settings its the losi m28 454now when I start the engine it idols then the rpm go up and the wheels start spin not sure if it's hi end or low end

Transmitter trim?

But if it isn't the trim then it is probably too lean and that can be the main needle but also the low speed needle.

ok cool thanks