okay guys, so after much deliberating, I have decided to swap my 12a carb to a 13BT into my 1985 Rex. So far this is my check list:

full long block 13b engine
transmission with mounts
engine wiring harness
air flow meter
ecu
knock control box
main fuse box
power steering pump
a/c compressor
all exhaust down to y-pipe
brake master check valve
clutch and slave master cylinders
throttle cable
ignition coils and brackets
intercooler w/hood gasket

if there is anything else i need please copy this this and add whatever else I need and I will keep everyone update with progress and pictures, because we all know no one reads these things without pics lol

Jason