Simple upgrades without turning up fuel?

[ellis93]

My very first mods was the 1/8 timing bump, 2turns down on the star wheel and the fuel pin turned to the deep side. Did it all at once, it was very noticeable not a lot of smoke at all
Next was a M&H M2 fuel pin,it is a nice up grade. I also bottomed the star wheel and screwed the smoke screw down flush with its jamb nut. That made the truck pep up more but brought the smoke on fairly good. WOT had it smoke a greyish cloud. Not bad,just noticeable.

Now I have installed the 366 spring and 7x10 injectors. With the afc set up above,I could black out the road behind. Now the afc has been tightened up and my max boost is around 38ish. Least that's where I let off the throttle

All that is with the fuel screw set factory.

Far as turbo upgrade,I like the GDS 60mm inducer I have seems to keep the egts in check with my other upgrades.

[Diesel]

So I got my 16cm2 turbo housing in the mail now. It includes a gaskets for between the exhaust housing and the exhaust manifold as well as another gasket that I believe is for the oil drain. Do I need anything else for the install? Do I need a new o-ring for the oil hose and do I need a new o-ring for between the turbo exhaust housing and the compressor aluminum?