Ok guys...I'm open to any and all suggestions. I made the changes suggested in relation to a vacuum line connected to the regulator and re-installed the IAC motor, but have made no progress. The vacuum line did not lower the pressure at all at idle rpm, but it will start and idle for a minute then seemingly load up with fuel until it dies. I even tried lowering the fuel pressure to 30psi with no improvement in idle quality.
Adjustments in the PMS controller do not seem to have any effect as far as pulling fuel away at idle. TPS voltage is correct and shows it at idle position in the controller screen. 73mm MAF w/24 pound calibration tube, factory throttle body, EGR deleted and 24 pound injectors. All fuel lines are -6 AN. The injectors were purchased used and I assume they are 24 pound units...I have no clue if all are working as intended or if any are faulty.
Using this regulator...
http://aeromotiveinc.com/products-pa...***-regulator/
A diagram of how I plumbed the system...
Hoping someone might pick out something I have done wrong or anything amiss.