Engine Mount Dial-In

[MacAttack]

Bought this kit a while back from www.performanceonline.com with everything included. Nice quality. Instruction sheet said 'there may be some drilling and welding required.'

Not a big deal, but when I mocked everything up last Saturday I found the motor mount centerlines on the engine are at about 17" and the tower bushing centers are only 15-1/4" from each other.

1-3/4" off.

Three Options:

* Notch the frame rails 1" on each side - drill new mounting holes - and maintain engine height.

* Piggy-back weld another set of bushings (that intersect into the motor mounts off the towers) on top of the originals - maintaining the original geometry.

* Make two machined blocks that go over the original bushing length (and bolt thru them) with three different holes that allow all the adjustment I could ever use.

Thoughts?