No shit. I've been so careful with everything that I'm really frustrated with all this stuff. I even told myself after purging the fuel rail to turn the engine over by hand before trying to crank it, just in case, then I forgot. I just bought a new set of Holley injectors this morning. I'm going to try to figure out why that injector seems to be stuck open. They all have common +12V and the ECU grounds them in pairs. So if it was electrical, like #7 ground wire grounded somewhere, I'd expect 2 cylinders to be flooded. I'll check to make sure nothing is grounded.
Maybe the new injectors will fix my pressure bleed down problem too. I just wish they were easier to change.