installed BBI injectors now have a fuel leak i cant find

[avantidude]

So I recently replaced my injectors, the truck runs great. The problem i have now is i have a fuel leak at the rear of the engine. I think it only leaks under load, because it does not while idling in the driveway. But drive it and it is dripping off the bellhousing. Any ideas guys?

 

[cerberusiam]

Check the rail lines to cross over tubes, one of them is leaking for some reason. Either it did not get tightened correctly or the line itself is bad.