an 800 would not be much of a difference because they are about the same size body wise, and both powerful as heck, so if you want the extra power, go ahead and go for the 800 because in the woods, it wont be a major difference either way. hope this helps.
Caudle 7c
2007 300ex-Red: Motorsport Products nerf bars, Renthal handlebars, Duro rear tires on Douglas rims, Durablue lowering kit, DG R.A.C.E slip on pipe (red), Dial a jet kit, K&N air filter, Highlifter front spacers- 1 1/2 in., Moose rear spacers.
1987 250x-Red & White: Full FMF powercore exhaust, moose racing air filter, jet kit, bored to 300, cam.- Traded!
2004 Blaster- DG nerf bars, full FMF exhaust, jetted carb-Sold
1986 Lt250r-bored, ported and polished, wiseco piston, front bumper, nerfs, grab bar
2009 Brute Force 650 SRA-Lime Green: Stock(dads)
2009 Bayou 250-Red: Stock(bros)
2008 Bayou 250-White: Stock(moms)