Installing a 42-48 crab dizzy

[big deuce]

There is a vacuum line from the timing cover to intake. Here is a pic, but I have a crab dist on a '41 which was originally equipped with a helmet distributor. The metal tube is longer, I need to shorten it if I were to use a stock intake. I will be using an Edmunds 2x2 which doesn't have a port on the drivers side. Just need to find a vacuum source. If I remember correctly, the fitting into the timing cover is a special fitting. Third Gen sells the line, but it's 34-41.