Alright, spoke too soon I guess. That hole wasn't spewing gas because the injector wasn't firing. The first time I put it back together one of the pins didn't line up properly. The plug itself is just a couple of pins free floating - no molded plastic to keep them centered. After assembling it a second time it started spewing gas out the barrel that had the original problem. This is after swapping the injectors front to back. Has to be electrical, but I couldn't find anything glaringly wrong with it. Back to Holley it goes. Already have a return label. Thank you everyone for your help.
So I'm a bit confused ( not unusual LOL)
After assembling it a second time it started spewing gas out the barrel that had the original problem
Is that with another injector or the same one? I assuming a different Injector as you're now suspecting an electrical issue.
SNIPER earlier mentioned he believes they are fired off a ground signal. If so, just out of curiosity, I might try to disconnect the signal wire at the ECU to see if the injector shuts off. That would confirm 2 things. It is the ECU, and that you do not have a pinched wire or other erroneous problem.
