Actually the fuel rail is connected to the fuel line at the back of the engine where Cyl #6. Also, why would it matter what end of the engine it starts with? If the fuel leans out it's going to be like 1000th of a second difference between the time the 1 and 6th go lean (or rich).
As far as the fuel rail pressure is concerned, I can't see it really mattering which cylinder you go with. There is going to be the same fuel pressure at injector #1 as #6. That's like saying there is more water pressure at a tap then at the end of a 100ft hose.
"Driving is like a narcotic, an addiction that can take over lives. It ruins people, breaks families apart, and even kills. Itís habit that needs to be fueled. Time, money, rationality, sweat, knuckle skin, and anyone who disapproves are of little importance to a driver, and are often overlooked. Hi, Iím Nelson, and Iím a drivaholic."