Hello, I have assembly my reed valve (mc28 sp) with new hrc reed and stuffer + spacer (hrc spec)

Help question :

the specer only (not stopper )will increase the performance or not ?'

Simply I can use it or not

I'm sorry bat I want set me in the right direction..
_________________
Alessandro Cucco
via Brigate Partigiane 43c
54033 Carrara (MS) Italy