Both me and one of my sidepipes currently have a bung hole


One's threaded, one's ........
I had one installed on my right sidepipe when my shop was dialing in the carbs in the first place. We made 15 or 20 pulls on the chassis dyno. I just need to pull the plug 'n thread that puppy in.
Rick-motorhead extraordinaire, I got my Raytech laser temp gun (on loan from my HVAC business) strapped to my right side in a "quick draw" holster, just itching to fire a few well aimed shots at an unsuspecting header tube. I'll keep the gauge visible on the dash, right next to my fixed Halon fire extinguishing system's pull knob. I can't help it ol' Shelby didn't build 'em right in the first place.
