cfwase, I'm not convinced you're talking about the same thing everyone else is.the 1GG and 4AGE superchargers are both exactly the same type. Only difference is their size. They are both positive dispacement blowers, which simply means they pump a fixed volume of air for each revolution. They are not designed to be mounted on the inlet manifold - the outlet is at the rear of the blower. You mount them to the block and run a pipe to the manifold just like you would for a turbo.

lobster, I used a 32/36 DGAV on the draw through turbo A14 I built a couple of years ago. I ran that at a max of 12lb boost and 8000rpm, so if you are doing this on a real tight budget that carb will be OK, with some attention to the jetting.

Be careful not to exceed the max speed of the blower when designing / modifying pulleys.

If you have problems with detonation (you will) ACL make a .030" head shim which will help to lower compression cheaply and easily. I also modified the dissy to limit the mech advance it produced, that proved not to be enough, so I removed the mechanism completely and ran on a fixed 12 degrees. With a positive displacement blower, this dissy mod shouldn't affect driveability at all.