A long ride? How long is it? 100 miles? 50 miles?

100 miles and refueling during the ride will be needed. The week before eating high protein foods will benefit you. Not sure the night before is going to be much different than the other nights of the week.

50 miles can be done without refueling at moderate pace. Again, high protein foods the day before and an energy bar if needed during the ride.

Disclosure: I am not a nutritionist, nor do I play one on TV or the internet. What works for one person almost never works for another. Try it and find out, eventually you teach yourself what works for you.