If he did it after takeoff he would never have got to the altitude he did. Also makes you wonder why, if that was the case, he didn't change back to the main tanks when he had a problem... but we will never know.
Good question I always got taught do FMOST or something similar it’s been awhile now, e.g. change fuel tanks etc
KRUSTY 34
Yer your right "The fuel system was simple Left and Right, 80 us gallons up to the tabs, 95 us gallons was up to top of the wing and then full tanks was 119 us gallons aside." found that here
http://www.pprune.org/dg-p-general-a...1p-mojave.html
Is JetA1 heavier then Avgas? Maybe topped it off and it all sunk to the bottom of the tanks or something?