Yep that is now the plan. Started pumping fuel from the tanks today.
I agree Frank but as the car gradually died over some minutes is it not possible that the filters somehow gradually blocked up. In any case I know the car will run if fuel is present. I had fuel pressure while it was running, now I have no pressure and the car does not run. I don’t have fuel flow at the rail or the main filter. Neither do I have much flow at the tank outlet. It points to a blockage in the tank and the only way I can be sure is to doing the tanks again. I do have more experience with this car now and am sure I will do a more thorough job this time. I have fashioned a pump set up and am draining the tank that way through the sender hole. I intend to leave about a gallon of fuel in the bottom and will use that to flush out the tank initially with another after removing the filter. I’m trying to be methodical about this so if you can think of anything there thing I can do please let me know.