Some of that you listed I believe is in the truck version 6.4L...not sure if its in the performance version but might be. You are right in I hear the same about FI on it. Pistons are the weak point and the dual runner intake also doesn't play nice with FI. It is a stout engine for its power output and intended use...but so is the 5.7L. That was my point. You want to make a lot more power with either and you are going to need forged internals and at that point might as well just go with the 6.2L Hellcat shortblock. 5.7L also will have the oil cooler in certain applications.