I presume you have checked suction lines especially any rubber ones for delamination. I am going back a long way but a Ford Thames with a 4D would pull for fun up to half throttle then die away, It was traced to a piece of straw in the fuel line after hours of work. You do have a busy couple of years planned Good Luck, I got pulled up the other day for asking for welding rods, they are electrodes the man behind the counter said. He was at least as old as me. Good fun. I have not been to a one before but I am going to a Military band concert with a friend in Dunfermlin today so about a 4 hour trip each way.