I have an 09 Tracker 1648 with a MB SD. I did the single carb kit, IM heads and exhaust on it. When I run by myself with the dog ad 3-4 doz decoys I can't keep the front end down unless the prop is buried underwater. I relocated the battery up front and it helped. I was going to move the gas but ran out of space so a custom tank is my only option. In the summer I run a trolling motor on the front with 2 Group 24 batteries up front with the main battery. I can get a little more speed with that set up and if I have a buddy sitting up front, no issue. Any body ever add trim tabs or anything similar. The rest of the performance is pretty good, gets out of the hole with a big load. Tops out around 29 on deep water with 2 guys and a fishing load, a little better when it is set up for hunting with 2 guys and the dog.

It was a 3500 special when I started and still has stock gears and prop. Any suggestions on gearing or prop changes. Don't run much mud, mostly thick weeds and shallow water.

Might try moving your rear bench seat 16" forward, could help balance boat a little better. Did on my Seaark and my Alumacraft 1648s.