A bit of progress:
http://forums.procooling.com/vbb/sho...&threadid=5613
This is not really an improvement on my design, it's more of an aesthetic re-work.
On the inside of the case, I'm going to have to put at least one elbow for the flowmeter, and for the inlet barb.
I picked up a 3" long extension to screw into the tee (inlet), so maybe it'll work a little better.:shrug: