Another thing to remember about with turbos. Not all of them can have fuel pass thru them. Most are made for just air and no fuel. The early Buick and that Pontiac 301 unit is made for fuel to pass thru. The other types would get the seal destroyed with fuel.
Thanks Mr Lowe, I read in some of the corvair liteture about the draw through systems needing the carbon seal and that most turbos don;t have one. Im pretty sure I am going to use some version of the buick system if i can find one.
