A catch can will keep your plugs from ever getting that bad (as well as protect a lot of other parts). Was the tune done after ALL mods were complete?
Whipple-12psi 10 Rib Pulley Kit-McLeod RXT & Steel Flywheel-UPR Rod End LCAs, UCA, Spherical Bearing, Panhard Bar, K-member + Front Swaybar Delete-Metco LCA Relo Brackets-BMR Xtreme Anti Roll-Spydershaft-Race Star Wheels-MGW-PMP Line Locks-Stanghi O/R X-Odyssey 10 lb Battery-Moroso Separator-Eibach Front/CJ Rear Drag Springs-Strange Adjustable Shocks and Struts-MSD 2 Step-etc. 11.29@123 1.59 60'
DRAG RACE? ASK ME ABOUT MY UPR SUSPENSION.