Trans-Dapt Performance Products' Fuel Pressure gauges are available with either a black, or "engine-tunred" silver dial. The dials are liquid filled, and precision reading.
 
Part # Product Media
2388 FUEL PRESSURE GAUGE; 1-1/2" Diameter; 0-15psi; 1/8NPT Male Threads -CHROME with BLACK DIAL
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$57.38
2329 FUEL PRESSURE REGULATOR; 1-6 psi; 5/16" or 3/8" Fuel Lines- CHROME
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$65.59
 
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http://hedman.com/images/ePIM/original/2329.jpg