Fuel gauge hook up ....non stock gauge
If you have the stock tank and sender then you must match the gauge to it. You need a gauge for the approximate 9-73 ohm sender. GM uses a different range and some aftermarket, yet another.
http://www.stewartwarner.com/tech/faqSc.html
Here are some compatible examples from their catalog:
http://www.stewartwarner.com/catalog/fuel73.html
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