WOW, how lucky is that? Depending on where they are to you, you could just drive there, look at it and talk to them about details. You could swap that motor out in a weekend1

Yes I have done a compression test and all were in the 140-150 range with my old wore out gauge.

Also as far as throwing parts to it I took it to a marine dealer an had them scan it ect and it showed ZERO codes even while it was having the fuel issue ect. They are the ones said it needed the 800$ fuel pump and labor.

Glad to hear compression is good. The scan tool is still nice to have. Even though it did not have any codes in it it is nice to be able to hook it up while you are on the water and read real time data. I love mine and would not be without it.

Yea it wouldn't be a bad investment at all

4 batteries? That IS another surprize. What type of batteries?
Four starting? Four dual purpose? Any deep cycle/trolling
motor batteries? If you are intent on keeping 4 batteries then
I suggest 1 starting and 3 deep cycle/trolling motor batteries.
However you should never use your battery selector switch
set to ALL. Your engine will NEVER be able to charge all those
batteries while running around the lake. Use your engine to
keep the starting battery fully charged ONLY. Use shore power
and/or a battery charger to charge up the stereo batteries. If
this boat was run for years the way you are doing it now, then
your alternator is probably worn out.

You are correct that a lot of people are not reading and
comprehending your thread. You are giving the pertinent
information, albeit in stages, and everyone should pay
attention so as to give you correct info. However you must
understand that each of these "surprizes" will rob a MPH or
two each. Next thing you know you are talking about real
speed losses. Which is where you are now.

Two batteries are in series to the starting On selector one two are in series on selector 2. When we sit I run the radio on 2 when I start it it's on 1 and when we are running down the river it's on ALL

All 4 are marine deep cycle batteries

Well the 200lbs of stereo and subs in the front and 2 extra batterys is about 350lbs extra, in the bow 200 lbs WILL absolutely kill your boat combined with a full tank of gas, 5 passengers and 2 extra batteries, WOW, 58 would actually be a realistic speed- But, you could only turn a 23 to 4200 and went almost 60 mph with a 20 pitch at a very low rpm, take your prop off, remove the six nuts clamping your bravo to the gimbal and wiggle it off, put it in gear, spin the input shaft until the output shaft goes exactly one turn-this will tell you the drive ratio , end the unknown question and make a decision of which way to go, Smitty

FYI, I have had my 3 kids teenagers in the cuddy a coupel of times and it kills my top end by about 5 mph, so the weight in the bow absolutely kills the top end. It fells like I am dragging a small anchor.

You will continue to have problems with the set-up above.

I agree, hopefully he means parallel...24volts ain't good...