Every vehicle on earth needs more throttle to go up very steep hills. If it didn't you have one heck of a machine.My engine does not have any problem at all going to redline on a flat road surface or keeping up with a 345 hp audi s5. Only when climbing hills then I lose power. I've tested it out on 3 steep inclines, 2 of which I'm stuck at the same speed and rpm. I do need to keep my foot halfway on the accelerator pedal just to maintain speed on 1 on the inclines in 4th gear.