250 i got ya, last time i weighed i was 258, but my bike only weighs 290.
On the times, im not that experienced with asphalt. I have done it a lot but only for fun really, i would love to really get into it but there is no where for me to race, i am the only quad at our local track and it is just TNT. But from what little i do know, there is deffinitly room for improvement on your slips. Along with mine, ive ran best of 7.4 at 90 mph with a 60' of 1.9 which is a terrible 60'. is that a 4 mill cub? no override i take it. and yeah what NYUK says, what gearing? I need some tires like what you got bad.