I have not modified the advance curve on the distributor. I really don't know how to do that. If there is a tech article on it and someone can post a link to it, I would apprciate it.

I am running vacuum advance, and we have set the advance on the distributor at 34degrees.

I can lean the air/fuel ratio out on the fuel injection system, and so far I have it leaned down. I still have pretty strong exhaust fumes at idle, even with it leaned down. I have also adjusted the fuel pressure down to 18 psi which is the minimum for the big blocks on this system. The car seems to run better at 20 or 21 psi, but I am afraid fuel economy will really suffer.

I wish I knew what cam was in the car, and I am sure the machine shop would not keep records to show what was in it either.