turbo sizing

[Matt]

Well, we all have different goals, since a lot of the guys on the site kinda frown upon stuff over 600, I figured I'd shoot for something more moderate.

Twin 20g's would do the 800-900 mark, and they are reasonably priced as well.
Twin gt30's could let you hit 1000hp, and they would spool quite nicely too, but would be maybe $200 or so more each.
If you want to have a really nice setup with some room to grow gt35R's are really really nice turbos as well, but ball bearing and cost umm, double a gt40 which will get you the same power.

My personal experience ball bearing turbos are cool, and spool a few hundred rpm's quicker, friends did a test of an IHI vf34 vs and IHI vf39, same size, the 34 is bb, and spool was like 200rpms quicker, which is a joke for the extra 300+ dollars.

As for boost controllers.... Some people swear by greddy profec B's, I think they are a hassle, and real pieces of junk. The only electronic boost controller I've ever really fallen for (unless you are gonna use a fast to control everything) is the Blitz SBC-ID, it works amazingly well on twin turbo apps.

edit: Oh yeah, go with cometic head gaskets, they are worth their weight in gold.