Ok, I modified my new filter head by drilling and adding a liquid filled pressure gauge. I did it right on the front. There is even a nice flat spot there to drill and tap.
UPDATE: A lot of you out there can't seem to find the electrical connector for the new, bigger electrical connection. Well here is some info. It is a standard 2 pin Weather Pack connector.
You can get them here at:
www.delcity.netMetripack 280 Series.
Female Connector Housing: Del City PN: 85014
Connector TPA (Holds the seals in): Del City PN: 85032
Cavity Seals for 16-14 AWG Wire: Del City PN: 75004
Female Contacts for 16-18 AWG Wire: Del City PN: 85050DL
They also have lots of other wiring supplies too.
Another place to check is Waytek Wire,
www.waytekwire.com