Jetting 2004 800ho ported

[jsandgren10]

I have a 04 Summit x 800HO. I wanted to see what you guys would suggest on jetting for the mods I have:

I currently just have the Trail Torquer and DJ clutch kit. What I'm doing to my sled is:

Ported jugs (Russ Lemke Enterprises (RLE))
Modified head with domes for higher compression (RLE)
07 Airbox.

They suggested I bump up to a 20 pilot, .010 shim on the needle and bump 5 jet sizes from stock. So running a 450 main jet. Does that seem a bit big?

Just trying to get a few ideas, don't want to burn it up but dont want it so fat that it doesnt get out of its own way.

 

[REDNECK REV 827]

i have the dj clutch kit and the rktek 827 bb with porting and i have 370 jets

 

[Macattack]

If your DPM is still installed .... it will only compensate and lean out the fuel mixture. It won't fatten it up. So be careful how low you go.

I have ported jugs, tight squish on an aftermarket head with mid elevation domes. 17.5 pilot, 0.10 shim on the middle clip, and 380 mains.

My buddy has a similar set up but runs an entirely different jet set-up. Can't seem to understand why .... it just does. So with that info .... I would use what your shop has reccommended and be prepared to make changes. But then again I haven't experienced using an 07 airbox. That maybe the difference.