Supertib has alot of time and equipment invested in moding nitro engines so I
would take his advice, but get a set of restrictors to go along with your new
toy in case you ever want to go 10min between fuel stops or you want to
finish 30 min mains with any tread left on your tires. A 7mm,8mm and 9mm
should give you enough tuning options.

Honestly a engine that trys beat you into submission every time you
take it out gets old after a while, at least with the restrictors you will
be able to tone it down a little.