I’ve changed one engine to a DUI HEI, can anyone help with the plug gap? Tuneup time.
Jul 25, 2023 #1 dwna1a Well-Known Member PLATINUM Sponsor Apr 23, 2012 5,981 James River Boat Info 88 Weekender 300 "Seahorse" Engines Twins 350 I’ve changed one engine to a DUI HEI, can anyone help with the plug gap? Tuneup time.
