[MaSnaka]

Ok you guys I'm getting somewhere with all this discussion. I am getting my advance from the port nipple just above the idle mixture screw. I have my PCV hooked up to the large nipple at the rear of the base plate. I have 2 nipples side by side, 1 small and 1 large at the front of the base plate (both plugged at the moment). I assume the smaller one is the one I plug into for my manifold vac advance, what is the large one for? Auto transmission maybe? Another PCV perhaps? Remember both of these are at the front of the base plate. My car was originally (when I bought it) set up with the manifold vac advance but a mechanic told me to switch it to port. At the time he really didn't explain the difference or the reason why, just did it and that was that. In listening to all of your collective advice I think I will switch it back and see what difference it makes. But I would like to know what those other nipples are for. Thanks! I'm learning.