The overall length of the check-valve was too long, so I cut the last 3 ribs off of each end to shorten it up to a more acceptable length. A bench-vise and a hack-saw would help out here.
Installed...
Close up of check-valve in place.
As far as any increase in performance, I came across an increase in boost (at the rev-limit) of about 1/2 psi. My Super-charger is in need of a rebuild... unless I can find another source for my loss of boost.