I did run it but not extremely hard.
I ran it for a while with the new gas in the tank.
In my humble opinion, you have not worked it near hard enough or long enough to see significant results. Putting around the neighborhood ain't gonna get it. Plow or disk a field. Mow five acres of tall weeds. Plow some snow this winter.
... she is smoking but about 1/4 as much.
You are starting to see some results. Relax and continue with the Seafoam treatment. You're not going to see amazing results over night.