I have a 1972 19-6 that I am rebuilding right now (well, am in the middle of anyway- have not touched it in a couple months :( Mine had been modified, and not well, to put a tank under the floor. I am going to install another under-deck tank, but do a better install.
I would be interested in how fast you are running with that 88 as I am not sure what I am going to use for power yet. I want decent speed but more important is a good cruise speed and fuel economy (with these gas prices!).
Jason, when you say you cruise at 40, what type of RPMs are you turning? Ever clocked top speed? I will be hanging used power on the boat, what is available will be part of what determines what I get.