Well if I was building a nice engine like 527 stroker Fe I would use the Aviad or Armondo and we use both. They are pretty much the same
oil pan. If you use main studs in the rear cap and do not cut them down they will hit any of the
oil pan back there unless it is a rear sump like for a truck. We use bolt in the rear cap sometimes to fix this as well. There is no need to have to do special work to the
oil pan. We aloso handle the Canton and Moroso but they are a front sump t-style pan and work but are not what came on the car originaly. The Aviad comes with a windage trey included as well as pick-up tube. I think that it controls the oil better and holds about 2 quarts more than the other pans as well which I like. It is your high dollar engine and I would not cut corner on an oil pan set up.
Good luck, Keith Craft