Originally Posted by
spectastic
For long rides/training, I've been eating some made trail mix with nuts, dried raisins, and m&m candy. I don't know what the deal is, but lately, I've been hitting a wall on my long rides. I think maybe the calories aren't there,
More likely it's your fitness isn't quite there. Provided you've eaten properly the day before you shouldn't need any food on a 3-4 hr ride. It won't hurt and will help restock your reserves for the next day but it's not going to make a big difference in your performance on the ride.
As far as what you're eating, you could ditch the fat and just stick with carbs. You've got plenty of fat on your body and don't need to eat any more during a ride. You'd never digest it in time anyways. Stick with dates, bananas or any other high carb food.