I am not sure about the front but I looked back at them while on the deck and it did not look like much of them were even in the water. As for the rear it raised it maybe 3", I know it helped it ride higher when you are taking off and not up on plane yet. Once on plane then not a lot in the water and I only mounted them a 1/2" up from the bottom of boat. I could of went with the small pods but after I checked my steering left to right and saw I could fit the medium ones that is the ones I got.
Before the pods the water line was around where the top of the pod is now by the side wall runner with it empty. With me 200lb in it at the back it does not even really change but before the pods with 2 200lb guys in it it started to get pretty close to that bilge pump outlet there in the side.