2011 5.7 ram on 6.4 shortblock

Your stuck man, there is no tuning available for 2011+ stuff. Your best bet is to replace it with a stock shortblock. Maybe forge it in preparation for tuning in the future. Then you can run nitrous or a blower.

But i also bought 34.5 inyectors from srt8 6.1 engine....i want to know if shortblock will fit on my heads, engine bay, tranny, etc.

You say that o2 wont be able to fix the extra displasment in open loop?. Actually i was worry to run lean at wot.