Having lumps installed will help,almost any application.
Choice is your if you want to spend the $$$.
With a turbo,cylinder head flow is not as important when you are forceing air/fuel into your combustion chambers. So, in short,it's not a waste of time,yes there will be an improvement if you install the lumps.
W/a turbo,,if you want more power just turn up the boost a bit along w/proper tunning & supporting mods. Sure you can port the head & lumps to flow really good for a lot of money & or time,or you can crank up the boost a bit for less money & get more flow forced into your engine.
As far as wrist pins,,I thought they are all the same size.
Going w/individual throttle bodys is a neat idea & better for a normally aspirated engine.
But going w/a turbo a single throttle body is better,less chance of leaks,lees complicated, & overall,you would not see a difference in power running multiple throttle bodys.
So my advise,stay w/a single throttle body.
I had run 3 48 MM DCOE Weber carbs w/a Paxton supercharger blowing through them,it ran good,but hard to stop the leaks,& in reallity I should have gone w/a single carb for ease of maintenance.
I just ran with the Webers because I had them.
MBHD
