I should mention you can 355s in an 8.5" 10 bolt now for an extra price i think US Gear makes them, for as long as i remember you can only get them in a Ford 9" and 8.8
There was a little bit of surge because of what i think using a small ball bearing turbo spooling so fast and the system had a really small 2" neck off the turbo and a really short way to travel to the throttle body, the body of the unit is pretty small and could have benefited being a bit...
My gain knob was on 2 with e85 before i pulled the system out, the car seemed to run better with the knob on 2 with e85 then on 6
but that was probably a tuning issue
There is no best, there is lightest, there is most expensive ect, but its what you visually like the best..
Most of my Gbody's have 15x7s on the front and 8s on the rear, and only light aluminum's whether it be welds or Convo pro's
Its up to you what look you like
Usually 255-60-15 fits best on the rear 7" stock rim, some push it to 275/60 but its not recommended on a 7" wheel only 8" and wider
I wouldnt go larger then a 17" rim but thats just me
It looks low but its really not, pic is on an angle, but some people put it to the left of that under where the would be Alky pump is mounted
Temps would never be over 180 and i actually never witnessed the fan turn on but it didnt matter as long as the temps were in check
This is where mine was mounted but you obviously cant put it there if you have a stock location intercooler
I had a liquid inercooler on that particular car