Ok so I'm fed up with me airdog on my truck and I am switching to a fuel lab. My question is do I need a regulator and if so should it go in the supply line after the pump or I've also heard of people putting them in the return side.
just put an open banjo in where the ofv was and then run that you your regulator. they have some nice steel braided ones of you can just get one that goes from a banjo to pushlok fitting.
I would run their regulator. It is a really nice option to be able to change fuel pressure in 2 mins. I def holds a steadier pressure also. I have used both and there is no comparison. Plus you have the boost reference option down the road if you wanted.