Finally found a decent priced Boost gauge, I got a Autometer 6159 , its the 30+ psi , with 30 neg. I need a map sensor for it though, anyone know if any map sensor will work or do I have to use autometer's replacement sensor?

Is that the manual or electric gauge?

Electric, Full Sweep, stepper motors..the works!!

Well, I hope you have better luck with yours than I do with mine. I have the full sweep electric boost gauge, fuel pressure gauge, oil pressure gauge and nitrous gauge. I've had to replace the boost gauge twice, the boost gauge sending unit 4 times, the fuel pressure gauge once, the fuel pressure sending unit twice, the oil pressure gauge and sending unit once and the nitrous gauge and sending unit once. And this is in the past year and a half!
Oh and my boost gauge is stuck again and needs to be replaced.
Like I said, I hope you have better luck with yours.

-Rich

what brand, item number / series?

Autometer, ultra lite, carbon fiber face, electic sending units.