Well, figured I would follow up with some issues I ran into. I did end up needing to trim back the corner of the casting flash on the block but that's not a real big deal. Then I noticed the car was shaking at idle and sounded like an exhaust leak or ignition problem. The scanner was showing activity on only 1 O2 sensor as well so that wasn't good. I kept getting a random multiple misfire code so I tried to drive the car and it shook real bad. I put it back on the ramps and figured I had cracked a spark plug or didn't have the wires on far enough. So I wait for it to cool and have a beer to think it out.
I knew it was on the passenger side and pulled each wire and plug to check them. First 3 were fine, I reach for the last wire and it's not even connected to the coil! Doh! Problem solved. As for the O2, I checked the extension harness and the 2 ground wires were crossed up so I cut them and spliced them back together. It runs a lot smoother on all 8 cylinders.
I need more beer tonight so I'll take the test drive tomorrow. At least I had the chance to re-tighten the header bolts and put the Stage 8 clips and locks on while I had the plugs and wires out of the way.