Ok, here's what I found. Case is iron (magnet sticks). Pan looks like the FX pan with the filler tube going in the side but, it has 14 bolts not 13. The case, minus the flange for the rear pump measures 9 7/8". The vacuum modulator is on the left rear. The tag reads:

PCD Z
352 4L 6B

What have I got?
Thanks for all your help!

Attached Thumbnails

     

______________________________________
1965 Galaxie 500 two door hardtop 352
1966 Howard v-drive flatbottom w/
468c.i. Holman Moody medium-riser
HM Weber manifold with 48 IDA\'s
HM 180 degree headers
HM oil pan, oil cooler, etc.