I have a 95 civic with a D16Z6, with a Garrett GT28 turbo, pushing 8 lbs around 220 whp and 198flt. Any suggestions?

Ok I wanting to push more boost but dont want to til I build my top end, my bottom end is built aalready and I just need to know:

What actually it consist of in a top end build?

What is the best products to use?

How much am I going to be paying?

What can I do in steps?

How long would it take if I did it all at once?

Ant thing else that might be an issue?