Your car wont start but has fuel and battery power What is wrong with it?

It could be a lot of things. Does it turn over? If not it could be a low battery, contacts that are corroded or not tight enough, or you're not in park or neutral. If it does, it could be flooded (especially if it's carbureted) making it smell a lot like gas, or there could be humidity in the distributor. There are lots of other reasons, but in my experience these are the most common.