oil pressure gauge

There are quite a few threads scattered throughout the forum regarding gauges. I have been searching to try and find some good info and I have found some but, not everything I am looking for. So, if anyone has added aftermarket gauges, be it tach, temp, oil, boost, volts, amps, whatever...

I INSTALLED AN OIL PRESSURE GAUGE FROM WWW.CYCLEONEOFF.COM WHAT A REEL NICE PIECE ! THE NEW FITTING THAT GOES INTO THE SIDE OF THE BLOCK IS NOT RECESSED FOR AN "O" RING , IT TAKES A GASKET , THE ONE THAT COMES WITH IT IS SOME TYPE OF PRESSED PAPER OR CARDBOARD , WE HAVE THEM AT WORK , I DON'T...