Re: 88 evinrude vro 70 hp to regular fuel pump
Did that job last fall on my '89 70. If the dealer has given you the right pump, then it has fuel in, fuel out, and a pulse line; as I recall, it was pretty easy to tell which is which. The pulse line simply connects, via fuel line, to the crankcase at the same place the existing VRO pump does.
You'll need to make some type of bracket to mount the new pump - I made one that attaches using one of the bolts that holds the exhaust cover on, but you could put it elsewhere. You'll really like the new pump as the smaller size makes it very easy to get to the shift rod.
I can take pics, but won't be able to do so for a couple of weeks when I get back from vacation.
Tim