I would check and make sure your ground is good again first. There are too many gauges screwing up to be a circuit board issue. If it were one gauge, perhaps a board. Since it is many, and your fuel sending unit/gauge is screwy, I would check ground. Those printed circuit boards are $130 and not returnable.
Maybe buy a goo set on Ebay or here for $25 first.
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1967 Starlight black PMD Engineering 400 Auto 1968 Alpine Blue 400 4 speed 1968 Verdoro Green 400 HO 4 speed 2013 1LE 2SS/RS Inferno Orange Camaro.
