I've got a husky yth2448 w/briggs engine. Solved my air filter problem, rebuilt carb. Now it runs for 20-30 minutes and wants to stall. I have to pull out choke to keep it running long enough to get it back to garage. I replaced plugs, fuel filter and lines, oil, air filter. I am ready to drive this piece of crap into my pond. Any words of wisdom would be greatly appreciated

Hi,
These newer V-twins are very sensitive to fuel issues. Assuming a clean carb and a healthy fuel filter, that leaves the pump. I have seen filters clog and pumps get weak.
Peace,
Clarke