That big of a tire will require a lengthening of the front of the wheel opening. You can just cut it where it needs clearance down at the bottom but that looks funky. You can tuck them way under the car so they clear but that look like you have a dragster frame with a car sitting on it. It is not that difficult to just make the full wheel opening a little longer.
Your best bet is to lok at several similar cars and see how they did it.
Ed