Dave, thanks for that dimension, it sounds close to mine but I am home right now so it will have to wait until manana. I need to measure for pulleys also so I will post that.
Bill, you are spot on about the water pump/bulkhead/distributor issue, I currently have just, and I mean just enough room for my distributor cap. The frame member below the rear window has good clearance, but the bulkhead angle just clears the front two wire connector posts.
I remember working on some of the GTD cars and this was not so much an issue, and my motor is mounted relatively low so just to be comfortable I am going rearward a bit. I have my mounts set up so that can be accomplished fairly easily, but the shifter will need re-adjustment, and some spacing at the gearbox mount also. I will post the changes as I do them.
Pulleys are another story, and I have looked at the ones you mentioned, also at Zoops I think out of florida.
I am using a Ford Motorsport pump that is 4 1/4" from mount surface to the pulley flange and Ford stopped making those pulley sets so aftermarket or maybe make them myself.
I am sure we will figure it out shortly.
Cheers
Phil