Ok so I tightened hat but it makes no difference very loose.
I popped the orange gasket out of the Air intake "hat" that sits on the throttle body. it seems this gasket is shot and doesnt seal anything. I ordered some O-rings on amazon that people say fit in the slot where the gasket sits and help seal the "hat" on the throttle body. These O-rings are heavy duty and rated up to 250f so they shouldnt degrade easily.
When i tighten my "hat" using the thumb screw it tilts slightly and is very loose on the TB. So for the mean time i flipped the gasket upside down the bottom of the gasket has more meat on it and still has a proper square edge and i put some grease on it, this helped it seal a little better.
After doing all this i then took off the intake and then sealed the throttle body and wedged the throttle plate open. and contined the smoke test to the manifold but i couldnt see smoke leaking anywhere in the engine bay.
I put a new ECT and IAC in. The idle issue seems a little better but the truck still has the cylinder #4 misfire when going up a hill under load.
The shop who installed the injectors for me wants to take a look at their work to make sure everything is proper because the owner assured me the injectors should have fixed the cylinder 4 misfire. I promise to keep you guys updated because i know misfires on these engines can be a PITA to diagnose