Isn’t the 540 a thirsty beast to feed?
The 540 has the capability to put out 250 to 300 HP. Certainly, using this horsepower capability does not come free. However, if you want to cruise with your buddies, you can reduce power to the same output level they are using, and use the same fuel flow to go the same speed. For example: an economy cruise setting of 2100 RPM and 21? MP at 10,000 will net a TAS of 220 MPH on 10.5 GPH. As you start with more HP at sea level, you also have more available at the higher altitudes. You can use this extra margin of power to achieve higher cruise speeds at higher altitudes.
