Re: Water Pressure Gauge
There are 0-15PSI gauges out there. I bought and installed one on my motor last summer. They are harder to find but still available. Mine is Quicksilver, I think.
I prefer the 0-15 range because like you, I only get about 12PSI at WOT with a new impeller. At idle I only see 2-3 PSI. On a 0-30 gauge you won't even see half scale when running at WOT, and the needle won't move when at idle.
Keep your eyes on ebay. That's where I got mine.