Yes upgrade to something in 7mm would be my preference.
And with the PODs I don't think you have to go nuts with a turbo and water injection right away. Just don't crank the fuel up past what your engine can deal with today..egt wise and smoke wise. ...when you get around to the turbo mods then crank up the fuel at that time.
When I put in my new injectors that was my approach although it was at the same time I did the 4 inch exhaust.
The last set of injectors I got rebuilt were done on a couple of days as normal timing. I dropped them off on a monday afternoon in town the they shuttled them to their rebuild shop 30 miles away, and I picked them up friday afternoon.