Well I got some work done on the truck yesterday, little odds and ends.
Welded in the top of the core support again. Put the fenders back on. Put the hood back on (happy the HEI dizzy clears! No cowl hood!). Also installed the holley 4 barrel carb.
There is a lot of stuff left to do before this baby runs. Wire it up, connect the master cylinder for clutch to the slave, plumb vacuum and fuel lines, oil and temp. sensors, tach, new gauges, new driveshaft, new engine crossmember, modify tranny crossmember, etc.
No idea how I'm going to mount the radiator yet. The mustang rad is huge.