Considering 2014 Hemi (5.7) 1971 Demon

My 340 is pretty tired, and I may rebuild at a later date. I found a good price on a low mileage 2014 5.7 out of a truck. I have an MSD Atomic injection set up plumbed already in the car, so aside from the spark controller from MSD, an oil pan/pickup , filter remote set up and an intake and an adapter for the 727 and headers..... my main concern is the VVT on the Hemi. Will the VVT continue to operate on oil pressure/rpm, or is there another way to control it without the stock ECM? Been looking in the sticky section and havent found an answer yet.