who knows how to make these yz450f really fly I drag race one?/

[Blackyz450]

I was wondering if there is someone or a bussiness or company or who ever that knows how to make these yz450f fly I have the head ported and stage 2 hot cams which i did not see any change and not happy with... je 12:8 piston It should have picked up a lot but didn't I know because I drag race it .....dirt drags 500ft and times only changed a little and mph only went up about 3 or 4 mph should have been a lot more.. and the 3 or 4 mph gain was piston and port work then put the cams in and no change...

[MaddogYZ]

You need to improve your launch technique

[Kroynon]

4 mph is substantial

Since your time didn't change your just spinning your tire.

Drag racing is all about traction and reaction time if you have power.

[stick_man]

Turbo

[Moto rookie]

New sticker kit will add HP ?

Ride it like you stole it!

[SteveThe Snakes]

What rear tire are you using.

[grayracer513]

Look up Ron Hamp.  He's the guy who has more real 60+ hp 5 valve YZ450's out there than anyone.