I just put in my 87 sailfish 255 that I spent the summer working on and bought last fall. I put new twin mercury 200 4 strokes they weigh 475 lbs each i looked up the 87 Evinrude that were put on when the boat was new and it said the weighed 450lbs each plus i have 50 gallons of gas in the auxiliary tank My question is the one scupper is half way under water the other one is just under the water is that typical for a boat of that year I am trying to use the gas up in the back tank to get rid of some weigh but is it normal how it is sitting any advise from guys who owned gradys from that time frame would be great thx