v-force or rad valve

[shredda]

I was looking at purchasing either the Delta v-force or a boyesen rad valve for a 1996 CR250. I'm looking for more mid-top end power without sacrificing bottom end. Any suggestions are appritiated and I would especially like to hear from cr owners as different bikes respond differently to mods. My bike is stock except for an FMF Fatty pipe.

 

[marcusgunby]

V force IMO is best.

 

[yardpro]

just put a rad on my '99 cr250. I gained a little mid and up but lost a little response on bottom. Could be the carbon fiber reeds though?