I'd help you get it running right but you would have to come to me.

Go to the autoparts store and grab 2 step colder plugs, pull timing at idle to 12 degrees (you do NOT need 2 people to do this), you already have fuel pressure set to 50, when you ordered the ecu...vega usually does a basemap on them. He probably increased timing in upper RPMs for more all motor power because I doubt you told him you were going to run nitrous.