engine mods I NEED HELP DECIDING

[enduro400rider]

i have a 2000 400ex and so far it has:
full yoshimura pipe
edlebrock quicksilver
K&N air filter no air box lid
works suspention
razors


i want to get some more power and i plan to spend about $800 to $1000 should i go with a 416 or a 426 i thought about the 440 but i heard their known for overheating. i also would like to be able to run pump gas so should i go with a 11:1. I do some woods riding but i mostly do drag racing and road riding

[REAPER]

Check some of my mods. It seems we do similar riding and I am pretty happy with everything. Goodluck. Reaper

[TRXRacer1]

enduro400rider, what kind of piston came with that IMS kit? You know that makes it a 430 right?

[hondarider2006]

go with the 416 JE or Ross(Ross is the same as the JE...just lighter and revs a little faster) 10:8.1 piston, and if you drag race a lot, I would look into the hotcam stage 2. Also a port and polish would be a good idea. With that cam, you will also want a rev box, I have a Magnum and have 0 problems with it. You will also want to get the stiffer valve springs so your valves don't start floating when you are revving that fast. Them are some pretty basic motor upgrades...good luck man on whatever you choose to do!