OK guys, the 7.3 head studs should be good to go here in a week or 2 if they pass there pull test. Moving on this is a great upgrade but now its time for something better as far as head gaskets go. I would like for cometic to make head gaskets for the 7.3IDI. They currently make them for 7.3 powerjokes but this doesn't help us. I would pull my motor yet again just to put in cometic head gaskets for ultra high boost. With head studs and Cometic style head gaskets I think these IDI's could run 20-25psi reliably (which after all is the best part of these old motors, reliability). Im not sure how to do it. But I would like to see if we could all send emails expressing interest in these gaskets or something. I know if they had enough interest they would make them. I already told them I would send them a new set of fel-pros I have for a mock of whats needed. If we had cometics and head studs these trucks could open up a new level of power. What do you think?