There the same spark plugs I run
vince recommend same one for my charger setup.
They do make the engine run hotter than NGK's, why I have and external oil cooler, with a thermostat, so it can never over cool the oil. Plus an alloy oversized and uprated rad, low temp thermostat, and low temp fan switch.
But with your engine being almost brand new condition, I'd run an external oil cooler, with a thermostat. Plus a low temp coolant thermostat.
Sound like you made some good figures.
What at has been done altogether?
I known a brand new 2.9 long s