On a 69 GT500 - I installed a new fuel tank and sending unit during restoration. As usual, the gauge does not register accurately the fuel in the tank. I have bent the float arm in the past, but it still isn't accurate. Has anyone tried any of the fuel gauge interface modules? Similar to the Tanks Metermatch ( https://www.tanksinc.com/index.cfm/page/ptype=product/product_id=748/mode=prod/prd748.htm ) And do you have any recommendations for me.
No but you can send the unit to Bill for calibration: https://desertclassicparts.com/product-category/fuel-system/ (https://desertclassicparts.com/product-category/fuel-system/)