Adj Drag Race

My buddy has a 2007 kx250f and he thinks he can beat my 250r in a drag race. his 250f is pretty much stock except the pipe and exhaust. my 250r has

lonestar carrier and axle
stock 89 rims
front-itp holeshot xc's
rear-itp holeshot gncc's
stock shocks
stock suspension
rear adj lower link for racing

motor
ported and polished
milled head 0.30
histon clutch basket
fmf power reeds
FmF fatty
keinin 39mm carb
freshly gone through bottom end
all new bearings
fresh counter balancer bearing holder
ESR
we only dragrace for fun sometimes. But we have a track.
we are probably gonna race this weekend, ill post the link for you guys after I put it on Youtube.