The pilot air screw and needle setting wont make any difference to top speed. The pilot air screw controls up to 1/4 throttle and the needle controls from 1/4 to 3/4. As for main jet, as long as the plug is looking the right colour, you cant do much more with it.
cheers m8 thats all i needed to know then thats 1 dt nicely tuned it gets to 100kmh in a matter of seconds an loads of grunt left to play with so im happy with that thats all i need really