I'm in the St. Pete area, about 25 minutes from the skyway. I may be able to meet you one evening to drop it off if you can meet me halfway (if you want it before Monday). If you want to do that I can meet you any evening after 5:30 or 6:00 on my side of the bridge...your call.

Did you change the spark plugs when you did the install?

Also, when you check the o-rings make sure you have the proper plug on the corresponding injector. I dont know if they can be mismatched but if the connectors are swapped it would cause the injector to fire at the wrong time which could cause the stalling, misfire environment your describing, especially at low RPM's.