Chevy 350 Twin Turbo Question?

[TurboLark]

Use the 4 bolt if you want to, but for peace of mind, get a Dart, World block. A good forged crank and rods with good bolts. Keep compression down to around 8.5-1. Get a custom cam made.
There are too many variables to pick turbos for you. HP goals, rpm desired, street/drag/road course.
Go check out the forums at www.turbomustangs.com there is a specific GM forum there. Lots of very knowledgible turbo guys.

[majik16106]

you can get all kinds of good info from some of the smarter turbo import guys too, a lot of those guys know a ton about reading out compressor maps. They are right, too broad a question, tons would work, what is the purpose of the car. i mean, i'm building sort of an all around car, in which i mean its a little too much motor for anything.. haha. you want forged internals, figure try to get out of it at around 65-6800. im using solid roller lifters so i get no float. 230ish cc runners in the heads and manifold. and your fine up top, fuel injection is smart, but not neccessary, figure atleast 60ish lb/hr injectors. im using a 350 bored .030 over. stock rod length, stock crank stroke. with twin t04e turbos, .57 trim, p trim wheel, about a 69 a/r. with that and an intercooler, your lookin at 450-550hp at 12-13 psi, and at 17-19 your looking at 8-900. and you can do that on pump gas. put some race fuel, make sure tuning is dead on, run her up 23psi, your lookin at 1000+, at the 17-18psi mark your lookin at full boost about 3600rpm. there is a general build and with some general round about numbers.