upping your valve-train isn't completely necessary for a turbo, unless you plan to go huge with it. but my top end is stock. stock cams/gears/springs. my bottom end is what is mildly built. and thats what you want to be the strongest, because that is what will blow out first. you should just scout around for a set of eagle H-beam rods or any strong forged rods, and some good forged low compression pistons. and ARP headstuds are a very good idea as well. just piece your kit together over time. before you know it, you'll have everything you need. just do some research, make a list of everything you need, then start buying stuff one at a time, or however your budget allows. thats what i did, and now i'm in my 'break-in' period on my motor. 250 miles on it so far, so good. whats your HP goal anyways?