Thanks to Cal and Holly Hartlline of Hartline performance for getting me hooked up with a XFI package. Cal was on the phone with me for a while during the first start up and everything went very smoothly. He explained everything very well and made sure I understood what I was doing. His initial tune was almost dead-on and needed very little adjustment, and we found out that the stock ecm had TDC 3 degrees off. Now, just the wait for warm in the Chicagoland area.......