V-Force3 vs boyeseen rad valve?

[Core87]

I am looking at fitting a new reed block to my 88 air cooled kdx200, have found out that the reed block is the same as all the water cooleds. Any way was wondering if anyone could shed any light on which way to go, I am looking for more mid to top end power. V-Force or Rad valve?

 

[arjay]

This might shed a bit of light on it.

http://dirtrider.net/forums3/showthread.php?t=41499&highlight=vforce+boyesen

I'll be putting a VForce on mine when it gets rebuilt.