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1 Holley Blue electric fuel pump (left) shown with factory mechanical pump (right) and its assorted accoutrements. After taking out the old pump, you’ll need to remove the plate that goes between it and the block, as well as the pushrod that operated it. Scrape off all remnants of the old gasket, then install a block-off plate using the included new gasket. It doesn’t hurt to seal it all up with black RTV.