Check to see how long it takes for the fuel pressure to 'Leak Down'.. a GOOD intact fuel system will stay pressurized for WEEKS.. ( Seen it myself).. however a few hours is a Good test..
If the Fuel System does not hold Pressure, that just Indicates a leak SOMEWHERE.. Not necessarily at the injectors.. But with the smell of fuel in the oil and around the Engine Bay.. I'd start taking the Intake off and do some serious rubber replacing..