New Circuit Boards could provide the solution to your blinking or non-functioning gauges. These replacement 1977-1982 C3 Corvette Center Gauge Cluster Circuit Boards, with thicker copper circuit paths and bulb contact points, are an economical investment.
Don't be fooled by cheap imitations that are thinner and will not function correctly.
Tech Tip: A pencil eraser works well to clean and brighten the copper contact points on the dash wiring harness connector. While you are working in this area it is wise to replace all of the lamps to provide bright illumination to your finished project. These light bulb kits are available as a complete car set and a bargain compared to a second dis-assembly of the dash area.