Holley EFI 12.3" Pro DashThe Holley EFI 12. 3" Pro Dash also features a plethora of inputs and outputs for expanded functionality of your Holley EFI installation. The included 34pin connector has 13 multi configurable inputs for most Holley EFI sensors, such as pressure and temperature. Not using Holley EFI sensors? We still have you covered these inputs are configurable, allowing you to utilize different sensor scaling calibrations. The Pro Dash also features two dedicated
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