The new generation 3.5 Ecoboost is making 450 hp and 510 torque in the Raptor and 647 hp and 550 torque in the GT. I'd like to see Ford make an Ecoboost pusher chassis with air suspension and brakes. There were rumors of a 5 liter Ecoboost V-8 but it seems that was probably wishful thinking.
I owned a 2013 Ecoboost 150 and it pulled my 24' KZ toy hauler like crazy. I have
a 1 liter Fiesta Ecoboost toad and the little bugger goes like you wouldn't believe and with lots of low end power. And has averaged 41+ mpg and I drive it hard.