farmerzo,
I'm betting you'll see an EGT decrease of between 125-150*F assuming you leave everything the same, and just install the turbo.
The HX35 should give you a couple more psi overall but it will respond WAY faster, and give you cooler boost temps. It will also slow down noticably the speed that your temps climb.
So far, that has been my experience for the short time I've been running the '35 from PDR.
Also if you don't have an aftermarket airbox, then drill three of 4 holes in the stock one. Go with about 2" diameter holes, and just above were the stock inlet to the airbox enters.
When that PDR 35 gets in place you'll love the sound of it winding up,,,, big rig sound to be sure... .
bob.