71 Dodge Dart Swinger in England

Ok i hear ya, it goes that way sometimes. Today. I had to go to work for a few hours, then change oil in wifes car, then go watch my 12 year old play a sanctioned basketball game at school. No mopar stuff for me either. Wondering what you thought about gutting a mopar box and putting the HEI module in it so you dont need to mod your wiring harness, and about the intake carb flange differences.
Don't think I will gut the original box. As mopar parts hard to come by in UK. Might make a heatsink on my milling machine and mount in place of original box. The inlet manifold is like the second photo. The centre bridge piece is slightly recessed. Is that to allow a little fuel air mixture balancing between each side? I guess I don't need the plate then I'll post a photo of inlet tomorrow to confirm.