Hello Mr Lee,
I'm using this Carter 4070 model now; puts out 6 psi and you know when it's running. I have a Holley 500.
http://www.summitracing.com/parts/crt-p4070/overview/
But they do sell the cheaper Mr. Gasket electrics at the AutoZone that may get you buy.
How far are you moving it and what carb do you have?