1969 engine mounting problems

[malexander44]

So I am trying to put my 350 in the other day and am having some problems. First off, I think I am using the I6 towers, which I like having the engine further back so that is not an issue for me. The problem is that I cannot get the holes from the towers and the holes on the mounts to line up. The towers that I have have a hole that is 1.5 inches in diameter and when I drop the engine in, I can get one bolt started to thread then the other one is to high by about half an inch.

Should I open up the tower holes even more?

Or should I unbolt everything, mounts and towers. Loosely thread the towers to the motor loosely thread the mounts to the engine and lower the towers onto the frame and loosely thread them on. Then start cranking everything tight?

HELP!!!!

Thanks
Mark