Stalling

yeah well leave it there then. Spend three days chasing your problems, and when you get tired of that, put the PCV on the front.See what happens.
Stick tuning and auto tuning are different animals completely.

Wait!
That monster cam is stalling with a 2.66 low and 4.56s? That is a starter gear of 12.13.
My car has a 10.97 starter gear, a 276/110 cam,10.9Scr, a 750 from the 70s, and I can drag the idle down to 550 with the clutch. Most of the time it is a blip-it,dump-it, and go, deal. That's what a 33 pound flywheel is good for;Energy storage.
At one time this engine had a 292/292/108 cam in it,@11.3 Scr. It needed some bypass air, and 16* of idle-timing. What size cam are you running?