Actually, I think you can use the same harness.....you will be running a computer controlled Holley 4 BBl. Personally, I would take the engine (as long as the compression leak down doesn't show anything untoward) and even build up the short block with "modern" EFI components.....

A1C Hodges, Christopher Active Duty USAF Sheppard AFB Texas;Westover ARB Chicopee, MA NECEG "Troll" formerly owned 2000 SVT Contour, with all kinds of goodies;)