o.k. I have a 5.7 350 w/aftermarket cam, pistons, bored.30 over. It has been timed and the VATS bypassed correctly. All the systems are working correctly except injectors/ no pulse? here are the things i have checked

1. 12v to both sides of the injectors
2. 12v drops to 6v when engine turns over
3. ignition module was checked by parts store/ brand new dizzy
4. TPS shows 4v+ almost 5
5. ECM appears to be functioning properly
6. Fuel pump is primed and pressurized
7. Engine ground is good
8. Spark plugs have fire

If I am missing something please advise...

 

Just a shot in the dark here but i think i may have noticed a little issues. You say the voltage drops to 6V when the car is cranked. Now if the injectors were never getting grounded you should still read 12V. So how did you get 6V? volt meters set to read DC will try to read DC. If you apply a AC voltage to it, (like the injectors being grounded on and off) it will still give you a reading it will just be wrong lol. Even if you had a meter that will automatically change to reading AC it will do much the same thing coming up with some sort of an average AKA "RMS" value. The flip side though if you really did have 6V there i don't think that would be enough to actually fire the injectors anyways. Long story short I think you need to take a test light or a noid light to see if in fact the injectors are actually firing.