I wrecked a truck one time, front right corner. I few weeks later I tried to start it back up. It wouldn't fire. Maybe acouple of puffs a time or two. I finally put plugs in it and it started right up. Weird.
Maybe for you a carb adjustment is needed. Or you might have to do it again. Cams will also make a difference, but it's usually the carb that needs adjusting.
Glad you got it going.