Some people on this post are recomending 5/8 inlet pump and others are recomending a 3/4 inlet pump......i am trying to understand why moroso told me to use a 3/4 inlet pump with the pan i am usuing and somebody else posted usuing a cavation pump with 3/4 inlet pump for a dart little m block.......will the flow on 5/8 pump and a 3/4 be the same and the only diffrences would be the inlet bigger to keep the pump from loosing suction