Re: Motor mounts
did the exact same on my 86/258 last year, how i did it was to attach my come along to and existing round hole at the front passenger side corner on the flange where the oil pan bolts up, and gently lift the motor up to take some strain of the mounts then, then unbolt them , remember the direction that steelbar/crossmember goes into place, to save a few seconds head scratching.
you may have to lift the engine an additional inch or two, to remove everything.
just be cautious to make sure everything moves freely and nothing gets in the way. I took the opportunity to upgrade to grade 8 cad plated fasteners, poly mounts and some new paint on the brackets