47-55.1 55 years ago I was given this USAF 54 3100

[vintovka]

Well the sun has gone down on the bad gauge company. Been months. The item in question is made by GLOW SHIFT and they ghost you on service and complaints. This one has a wide open vacuum leak. Should have looked elsewhere. As you can see even the picture on the box does not match the item. I see they have pulled it everywhere i looked. If you have one beware that an instant leak may occur at anytime and run super lean or stop engine.