FiTech EFI system

After being out of town and getting the parts delivered and weekends without parts and time all at once, I finally got it up and running. Thanks Magnum.
I had some issues...I have an MSD Streetfire ignition, FITech, and an MSD billet distibutor. I wanted to run the timing control on the FITech which is why I got the MSD distibutor and locked it out.
So I went to fire up the system and as soon as I turned on the key the injectors started firing. After calling FITech we determined that the distributor had to be bad because after we unplugged it from the FITech unit the injectors would quit firing, plug it back in and the handheld would read between 6-700 rpms without the engine even running, so they are getting a false signal. I return the distributor and get a replacement, plug it in and all is good, spin the rotor by hand ad the injectors fire like they are supposed to. Then I install the distributor and the same problem? So I bypassed the timing control on the FITech, using the MSD ignition and hit the key, fires right up, runs fantastic. Now I have to figure out whats causing this or pull the distibutor AGAIN.... and unlock it. Calling FITech in the morn to see if we can get to the bottom of it.