aftermarket fuel gauge

72ScampTramp said

The temp gauge isnt hooked up. Only thing was amp meter and Speedo which all it does is bounce all over

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I have Speedhut gauges in my car. The fuel gauge is programmable using your stock sending unit.

http://www.speedhut.com/

As for the bouncing speedo, take the cable off and spray it down with a good penetrating oil. Im sure its sticky inside and just needs to be lubed up.