I cannot think of any way gas would be spurting from the valve cover...... This is going overboard, but maybe if a valve seal was completely destroyed/removed etc, gas could be shooting up into the head, causing the oil level (in the head, not the crankcase) to rise up past the valve cover gasket, and gas could be leaking out. But, gas would only be spurting or spraying out if the crankcase pressure rose dramatically enough to literally push oil/gas out of a weak spot in the valve cover gasket.
I forgot to ask but how does it run?
Here's a list of things to try:
1. Start the car without the oil cap on. (hold a rag slightly over it to prevent oil from splashing, but be careful of the fan)
If you have excessive crankcase pressure, this will eliminate that. See if gas still sprays out with the cap off.
2. Take the valve cover off and inspect the valve seals. There kinda hard to see, so get a bright ass light and make sure none of them are destroyed.
3. Check each cylinders spark plug. If any one of the plugs are completely fuel fouled, ohm the injector and see if it isn't stuck open causing a massive fuel dump.