I’m posting this ad for a best friend and long-time racer, Chuck Smithfield, who is not very proficient with computers. Chuck is a stand-up guy who will truthfully answer any questions you have. You can call or text him at (360)798-9966. This electronic fuel injection package was purchased in 2008 from Hilborn for a 502 big block Chevy engine. . It is complete and unused and includes original instructions, wiring harness and two K&N type air cleaners although only one is shown in the photos. The unit was programed (probably by Gene Adams) for a 502 using Hilborn’s testing engine before shipment. It was to be installed on a streetrod, but wouldn’t clear the firewall properly so it was put on a shelf and never used. The Hilborn company was later sold to Holley, Inc., and this unit is no longer available for sale. I’m told that a similar unit by Kinsler sells for $12,000 but you can have this one for the original, 2008 pre-inflation price of $8300.