Fuel is coming from somewhere behind the engine against the firewall, or down behind the manifold, cannot find the source of the fuel leak?

I wanted the [Vapor Fuel Purge Valve] off. Or what people call the fuel pressure gauge. There are several other names for it as well.

Located right under the Manifold. On the fuel rail. You have to take the Manifold completely off.

This means the EGR along with the Throttle-body also must come off.

So, I used a way around this by loosening up the first 6 screws and the two remaining at the firewall end stay tight.

I used a pump-up gadget from Home Depot or Lowes. It Looks like a blood pressure gauge.

You can stick it under anything and pump it up to 300Lbs of pressure. So, I removed the little triangle sensor. I tested it and it's good" I put it back on the fuel rail.

I let down the Manifold and tightened the screws.
I start it up. Normally starts on the first crank.

Suddenly it's dramatically kicking like a mule" trying to start.

And a Massive amount of gas comes out to the ground. People are yelling at me to turn it off!

A half-gallon came down in about one second.

As if the fuel pump is pumping my gas through a hole to the ground. So, I ruptured something.

Perhaps some line? I can't see behind the manifold" I took off the manifold. And could only see a puddle of gas (on-top) of the engine block.

It did not appear to come from the fuel rails or injectors there would be little puddles of gas next to the injectors if so.

No sign of gas there. I changed the fuel filter under the passenger seat.
This also proved to be no leak there.

The gas is coming from somewhere behind the engine against the firewall, or down behind the manifold.

I cannot detect where even with the Manifold and EGR throttle-Body removed. Where could the gas be coming from? With such force like I have never seen before. Thank you

The vehicle is an XLT model.