Just got in from the garage - false alarm - the filing the I had done to be able to use the larger clamps didn't go quite far enough and so there wasn't as much clearance as their needed to be - as the bar/clamps/brackets settled in the clearance was reduced further. I went back at it with a file, pushed the bar as far forward as I could while tightening the aft bolt, and then tightened the forward bolt. I'll see tomorrow if that has fixed it.
Thanks for the offer Brad. I'll give you a shout if I get some time, but I'm supposed to help my brother in law move this weekend plus have some things planned with the kids. I am interested in seeing the engine at some point.
Eric