On the passenger side I was able to get to all of the plugs with straight plug heads. But when I went with the TFS angle plug heads I had to remove the header from the head to get to the number 6 & 8 plugs. Driver side was a lot easier. What heads are you using? Straight or angle?
Also with my stroker motor I have splayed caps, so I had to slightly bend my dip stick tube to get past the bearing cap. So if I put the tube in first, then I had a heck of a time getting the header over the tube. If I put the header on first then I had a heck of a time trying to get my dip stick tube in because of the splayed cap.
I just thought I would give you some heads up (no pun intended) if you run into any issues on the passenger side.