I've wired in a boost, oil temp and pressure gauge. Both oil temp and boost are fine. But pressure will read correct-ish 60psi when ignition is switched to point two, but when at three or motor running it will be at full psi (100), I know this is not right. The engine and oil are all fine.
The live feed is taken off of the stereo feed.
Any ideas, should I move to another feed?
And which one would be best? The other two gauges are fine?:wonder:

Oil pressure will drop as the oil heats up. Mines off the scale on start up.

Could be. Mine easily tops 7 bar on start up, (100+ psi), but has dropped to 2-3 bar once warm, on tickover, with 6 bar when on load.

Alcazar