I've got a 94 ex with abs and I'm Looking to swap a b18c1 into it. i was told by someone my unit under the battery would have to go. Is this true? Im looking at it and it seems the only conflict would be the way the manifold rotates down instead of up. is this why it has to go? the manifold is in 3 pieces couldnt i flip the center piece and change the angle? advice please..