TTI Problems - Annoyed!

Not sure if this will help, but my car too has power steering and it's a four speed.
I had to add a 1/8 inch shim under both motor mounts, and tilted the motor ever so slightly a couple of degrees on the mounts.
Then I had issues with the Z bar for the clutch linkage, had to do a little grinding to the bottom of the Z bar to prevent the adjuster from hitting the headers when letting out the clutch.
I have only minimal clearance between the power steering box and the headers.
As for the steering shaft coupler it is not special, just a new standard piece.
Hope that helps.
I have had not issue from the above mentioned modifications.