Motor Mount Install


I have a 2020 used Phantom Scythe. I am mounting a Predator stock engine. The kart came with a Phantom Mega mount 8-15 degree mount. Looking at the motor in the mount even using the 8 degree side the engine only has half of its fuel available. Should I get a flat motor mount instead, I don't want to add a fuel tank for my beginning driver just yet.
Ok motor mount is good to go. Thanks for the advice. Do I have to adjust the carb float to account for the angle?