HARD RETURN LINE METHOD
Drill a 5/16-inch hole in the sending unit plate adjacent to where the main line, enters the tank. This will be the hole for your return
line. Insert a length of 5/16-inch hard line (available at most radiator shops) into the hole and weld it to the sending unit plate. The
hard line should extend through the hole 1 to 2 inches on the outside of the plate. On the inside of the plate, the hard line should
follow the contours of the fuel pickup line. Bend the end of the return line away from the sock on the end of the fuel pickup line.
Solder or weld the return hard line to the fuel pickup line.
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Pro-Flo EFI Installation Instructions
©2005 Edelbrock Corporation
Rev. 2/05
Brochure #63-0273
Catalog #3530 & #3531
HARDLINE METHOD
BULKHEAD FITTING METHOD
