gearing problem

[focusmad]

I am have a problem with x6 squared getting the gearing right,i am going a speedpassion esc speedpassion 7.5 motor and 5300 lrp lipos.the gearing i use is 24/76 it feels like it has no top end as the track i race on is the new titchfeild track witch is a long astro turf that is fast and flowing the motor is getting hot but not overly can still touch it after the race can anyone help me out
cheers chris