http://www.engine-swaps.com/Pages/ProductsYear/67.72aBody.html
This is the link to the mounts you need. I have a new set in the box fro 100$ if you want them. PM me.
Check your car and see if the front bolts are 1/2" or 5/8". If they are the 1/2" bolts and you can put a bushing in there with the 1/2" hole you wont have to drill out your shackles.
The bolts on an A body are 1/2 inch and the front hole on the springs require 5/8 inch bolts. Not sure about the Cuda but you may already have the 5/8 inch bolts. If not Mancini Racing has them for 8 bucks.