House of Windsor 4ever!
Join Date: Jul 2006
Location: Everett, WA
Bronco Info: 79 Ranchero GT "Babe the Blue Ox"/97 Eddie Bauer Exploder 5.0 AWD
Waste spark systems have been around since the early '80s on EDIS engines; but this 7.3 would be akin to the 16-plug setups on the Mopar Hemi engines, and the '90s Ford 2.3 SOHC's. It essentially has the cylinders paired, so that when your firing cylinder is on compression stroke, ready to fire, the companion cylinder is on the exhaust stroke, also ready to fire.
Link yourself down to Walmart!