More power?

[BlueDemon86]

I know this has probably been asked a number way beyond imagine, but I've searched countless sites and cant find what I need. Later on this year I plan on turboing my 1998 Ranger, I have a 2.3L turbo coupe block(no pistons or rods) I was hoping someone could point me in the right direction of the better rods, pistons, and turbo. But also what other small things I could do to increase power. I'm only looking to make about 15psi of boost, so I'm not looking for something too extreme. Thanks for the help.

 

[BlueDemon86]

How big of a cam does a 2.5 have, and how much bigger of a cam do I need to get to see a decent improvement.