will a carb tune up(clean out, checked over, etc.) new top end(pistons, rings, clips) and a .10 over bore with the proper .10 pistons make very much of a performance gain? Bottom end? Top speed? THANX

 

Nope, displacement is the biggest factor in 4-strokes.
If thats what your planning then I would suggest going with the biggest high-compresion piston that you can stomach, drop in a mild cam, tuned to you carb and exhaust. Then you might hang with the 400EX.

I've dumped a lot of $$$ beefing up various 4-strokes. If you have the need, then get a 2-stroke.

good luck!

 

You need to do something to make the warrior faster. I kill Warriors on my 2001 Blaster.

 

Warriorkiller you know something my Warrior can out run a Blaster bored .40 over so don't give me this crap about outrunning Warriors. Yeah my Warrior is modded a little but I am sure your Blaster is to. But of course a two-stroke will outrun a four-stroke duh.