I’m running stock exhaust, here’s where mine is:
Holley Sniper 2300 install with PowerSurge - https://forum.ih8mud.com/threads/holley-sniper-2300-install-with-powersurge.1248419/post-13972231
I’ve not had any problems with the sensor. It’s been there for 3 years, although I don’t drive it...
Oh yeah, I forgot all about that. I ended up installing a brand new OEM PCV. And I still get the stalling below 160°, usually only on cold days. Maybe I'll try the fixed orifice PCV after all.