lighter valve spring
heavier hammer spring
Didn't want to mess with the port
I had fantasies of getting 1000fps, somebody may be able to do it. I stopped and am happy with were they are. Acuracy is great and shot placement counts for alot.
Cleaning and oiling the barrel can get you abit more fps.
This message has been edited by ehbob from IP address 126.96.36.199 on Oct 8, 2011 12:35 PM
This forum is not affiliated with the Crosman Corporation in any way// Information presented in this forum is intended for informational purposes only; use at your own risk//Posts made to this forum are solely the opinion of the individual member