If I recall, David used less fuel than Poobs (Ed Pataky) each leg of the flight from
Huston to Clinton the year they Flew together.
Just because 150 might have 150 HP hanging on the nose doesn't mean you have to use them all during the entire flight.
Throttle back to normal 150 speeds and burn normal 150 amounts of fuel.
It works for Cardinal RGs, too. I have a 200HP engine but if I throttle back to just under 40% power, I can cruise alongside 150s at 6 GPH.
38% of 200HP is about equal to 75% of 100HP, i.e. - the normal cruise setting of a 150.
One item that really helps is a JPI FuelScan. Once you know *exactly* what your plane is burning, you'll have a far more comfortable feeling flying a 150/150 with stock tanks. Ed Figuli put one in Woodstock, I'm sure he'll pipe up soon.
