Fuel pump swap

I have the vehicle listed above a two-door model that I just installed a new fuel pump in. It's the pump with the filter built into the module. I also have a 1997 four-door Blazer that the fuel pump just went out. This pump had a strainer, and the float position was 180° in the opposite direction. My question is, will the new pump from my two-door operate correctly enough to supply fuel to my spider injectors? I was able to get it installed after modifying the floats position. I had a mechanic, whom happens to be a Blazer enthusiast, tell me it didn't matter, and that all of the pumps are interchangeable. Now that I've installed it, my girlfriend points out a discussion from another reputable forum in which one of the members was very adamant about them not being interchangeable. As stated, I did modify the float, knowing my gauge may not read correctly, in order for it to fit. Will it work as is or should I use the old module, and just remove the pump from the new one & put it in the four-door module?