Ditto that on the sending unit. Gauge function test is as easy as disconnecting the wire at the sending unit, then grounding that wire. You should see no pressure, then full pressure respectively. If you do, then your gauge and associated wiring is all OK and you know the sending unit is in need of replacement.
Two Chrome 10 hole wheels with Kenda Loadstar radials.
Mounted, balanced and delivered.
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CARBURETOR REBUILDING - $199
Parts, labor and return shipping included
Holley Marine 4160 Freshly Rebuilt $349 - Delivered
2 LED 6" BRAKE LIGHTS DELIVERED $32