Too much gas and air jets, Problem solved this 440 now runs great.
This sled came without throttle valve, jet needle and throttle cable as well as a bunch of other stuff. Many of you found parts for me and I thank you. I was given a throttle valve and jet needle. Needle was wrong number so I replaced it, throttle valve was a 3.0 so I put it in. Big problem, it was the reverse of what was needed! cut out on wrong side.
Found this out at a salvedge yard today. Now have the correct one in and it sounds great.
Tomorrow to the Old Timers Run at Lake Park, MN
PS I did remove and clean the carb from my 340 cyclone in Sept. but did not see the difference when I did this one a couple months later.
Thanks again for all the help.
Don O