Those are the Bosch-style long boots. The good news is that they are available at your local Napa, or any Echlin dealer. They are made for the Bosch connector with the hooked lip, but good for us is that 80% of top-feed injectors are setup that way. Even without the lip, the boots still hang on to most injectors. Here's a link to them @ Napa:
http://www.napaonline.com/NOLPPSE/(S...414_0000999999