Throttle body-75,80,90...

Ok i was looking at some intakes and throttle bodies. I was wondering if i should just stick to a 60 or go ahead and move up bigger if i can afford it. I plan on adding a turbo running 10psi of boost on stock head for right now but getting parts for a 1g head swap. The intake im getting right now is a custom made one and that want to know which size tb i would like. Would i be gaining anything more by going any bigger?( Than a 60) or would i start to see a decrease in spots of my power band?

Unless your going to port your intake mani and head then anything bigger then 60mm would probably be pointless.

well im in the process of getting a 1g head ported and polished right now its being pressure checked and make sure everything is good cause i got it from pull-a-part. I was waiting to get it ported so i could get the head and intake done at the same time. I might just stick to a 60