I spoke with Ray Lawrence at Espar Parts Michagan 2 days ago about my transit B4L kit. I asked him about this problem and he proceeded to tell me that they are now insisting on installing the new straw in the tank. The Espar fuel pick up is 2mm id and it does cause problems to use the ford fuel auxiliary. He also confirmed that you do need to drill a new hole, but my rudimentary understanding is that the hole is drilled in the "dummy" port cover that one would remove when replacing with the new ford fuel pickup tube. He assured me that it does not tie into the van's fuel line. The dicey part, after thinking about my conversation with Ray, will be deciding how far down in the tank to stick the new straw! He said they recommend, I think, 2 inches off the bottom which still leaves several gallons of petrol in the extended 31 gal tank. Not really sure about guessing what vertical placement to use when installing. I may be calling Ray back when I install my unit to get more clarity on the placement of the new 2mm tube. On the positive side, this will do away with any fuel line adapters or connecters. He said it will be one uninterrupted 2mm id fuel line from the tank to the pump which should take care of the problems they were seeing. He was very helpful and informative and also pointed out that their European supplier has been blocked at the ports in Canada and this is the cause of some of the shipping delays. He said they just received 40 units and will be back to shipping them out if you had one ordered and wondered what the delay was all about. Cheers.