Pressure Gauge

I am going to install a water pressure gauge on my 1998 150 HP Intruder. What should the pressures be at various RPM's??

Much Thanks http://www.bassboatcentral.com/boardstuff2/beers.gif http://www.bassboatcentral.com/smileys/USA1.gif

Nobody?? http://www.bassboatcentral.com/smileys/bows.gif http://www.bassboatcentral.com/smileys/USA1.gif

3 psi @ idle and approx 20 @ wot is a good guess.

Thanks much