Here is a post by John Estill (Jdestill) at the link:
http://www.gnttype.org/discus/messag...tml?1040003000 in ref to someone wantting to turbo a 350 Chevy.
Sunday, December 15, 2002 - 02:40 pm
A couple of things:
1. First you need to determine a few things: what rpms will you turn, will you add an intercooler or not, and how much boost will you run? Those are the primary items that will determine the size turbo you will need. Do not try to use some random turbo just because you have access to it, it problably won't run like you want it to.
2. Oil return is a gravity drain. Turbo regals drain back to the lifter valley. Some people run them straight back to the pan. Do not try and return it to a pressurized passage or go through a cooler, that will just back things up.
3. Cams... Comp Cams has some new turbo specific grinds for SBCs. You may want to look into those.
4. Corky Bell's book "Maximum Boost" is supposedly a good reference for those wanting to learn about turbo systems (haven't read it myself though). It would probably be well worth your time and money to get it and learn what you can before jumping into a project like this!
John