[stackj]

As Ernie indicated (above), you really need to know how your fuel system works... especially in the older Skymasters.

Take a look at his web site. He has a great write-up on those systems. This could save your life. Be sure you understand the difference in how to get fuel flow from the aux tanks vs the main tanks. If you run out on the mains, you really have to be patient (and have some altitude) to get a restart on the aux tanks!