1979 SN Stock Weight

Trying to find out the stock weight of this boat with the CC trailer.

Anyone have their weights available? I pulled across a truck scale and got 3400 with trailer, excluding tongue weight. Much heavier than I expected and I'll bet this tongue is around 300 pounds.

One of the POs redid the floor in this boat and I'm wondering if I have a bunch of water logged foam. Porpoises at about 35 mph and gets pretty violent above that.

PO had also redone the floor in my boat...but I had the same porpoise problem you described. I changed to a Acme 542 and it went away. What is strange and I can't fully explain is why the prop solved the porpoising. A few days later (and really pleased already with the new prop) I pulled the flooring and spent two days removing the soaked foam and what a difference it made.

The new prop and foam removal have left me with a much smaller wake for slalom skiing. Now when we wakeboard or wakesurf we need a fat sac!

Yep a 542 on a 16' Mustang. It's being driven by a modified 289 that can run 5500 rpm so when I bought the 11.5 pitch I wasn't worried about rpm's and only wanted a water "tractor" since some of the slalom skiers we pull use small HP ski's, deepwater starts, way over 240 lbs and hate wimpy boats. I ran her to 5500 for break-in (scary) but now just ski and wakeboard. The 11.5 pitch also holds speed better while wakeboarding so we're pretty happy.

I'd bet dollars to donuts you have water soaked foam if she porpoises. Messy job removing foam, but it makes a huge difference in performance. Also pretty tough removing the fiberglass and soaked plywood getting to the foam (more weight) but it's worth the effort.