A Madbull M110 should also land you in your muzzle velocity range.
You would probably be fine with the stock TM spur gear at that power level, a new sector gear might be a good idea though.
The stock TM air nozzle is quite good, no reason to change it.
Curious, why are you putting in a Systema Magnum Motor?
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Bob - My TM M14, AK47 and G36KV
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