The motors come shipped with std head @.3 mm shim.. this is good for 20% nitro

they also come with an extra .2mm shim , i recommend using . good for 25% nitro

if you add another .1 shim and change to turbo head you can go to 30% nitro safely

Pipes that Go great (in order of greeatness ) are the

LRP 2063 Absolutely delicious !
um.... thats the only one i can recommend .. this pipe was made for the Go !

Power on tap
Very Even linear power
Excellent tank pressure nozzle
Instant power, no lag what so ever

We changed over from the HN range of pipes .. which were good , but the LRP 2063 is a monster !

We like the LRP Turbo plug #6 and the Go Tech #5