Hi Dave...
I took the carb/reg. off my .45 for cleaning. (the engine was given to me by an older gentleman, and had sat un-used for years )
Now, when I put it back together, I can only just barely snug the thru bolts before the barrel binds badly!
I know the bolts aren't anywhere tight enough to keep from vibrating out, and the fuel/press. will probably leak too...

What happened, or what am I doing wrong?

Thanks...Tom