98 Mustang V6 gas smell

I think i saw a post in here about this already but i can't find it, went through all 41 pages. After driving around for like an hour it starts to smell like gas inside the car especially if the a\c is on, there is no leaks that i can see and the car runs fine and gets normal gas mileage.

Pull the vacuum hose off the fuel pressure regulator. If gas spills out that is the problem.

Pulled the vacuum hose off the fuel pressure regulator and no gas came out. Could it be the evaporator and if so where is it?