406 Single Turbo

[19Nova68]

Hi everyone, I'm Andrew. I've been reading this forum for some time now, and have learned alot. I have a few questions regarding a turbo build up. I was intially going to build a N/A 406 but after riding in my buddy's single to4r 355 v8 '86 rx7, I fell in love with turbo V8 cars!

I know basically how everything goes together, and I can fabricate most of the part myself, but my question is, how do you know what size turbo to use? What size exhaust turbin and what size compressor. Would aluminum heads allow me to run more boost without detonation? Head flow numbers dont matter with turbo cars, but does valve size?

Any info would be greatly appreciated.
andrew