Has anyone installed pressure and temperature gauges in the dash below the fuel gauge and speedometer? This would replace the cigarette lighter and fog light switch. I am going to use 2 1/16" VDO gauges. Any pitfalls to watch out for? Anyone have pics? Thanks!

There's not too much room there, and the visability would be poor. Try the 2 hole VDO rubber mounting bracket in place of the ash tray. It's just about a perfect fit and the guages are very visable. Just trim off the angled top of the rubber mount and use the same screw holes that held in the ash tray.

Mounting in the dash has been done, with up to 4 gauges. There are some photos around here somewhere. This is fine for non-critical gauges like fuel level or a voltmeter, but things like oil temp and pressure you want to keep an eye on are better mounted directly in front of you. You could buy a 911 oil temp/pressure gauge and slot it in where the stock combo gauge goes, then mount a fuel gauge on the dash. Very common setup.

The ashtray setup also works, and generally involves less cutting than mounting it lower. Two 2" gauges fit there quite well.