So I took the plunge and bought a vacuum pump kit from GZ Motorsports. Will be starting the install on it this weekend. Couple questions that come to mind, and no I haven't read all the paper work yet. It could be in there, but wanted to put this out to the group while it's on my mind. Looks like the pump is set for 21. What "pressure" does everyone else run there's at? Read somewhere to much can pull oil from the bearings. Also, do any of you mount a permanent gauge to monitor this? Big block chevy buddy tells me his is set to 15, and has a port in the fuel pump block off plate. Just trying to gather all info (and parts) ahead of time. Thanks!!!