I did the day I first got it in and it helped a little but engine power still didn't fill the same you could tell something was wrong. But one day we were trying to drive it from the shop to the house and it went fine still going slow but when I came to a hill I could floor it and still no power and we ended up having to pull it to the house. Someone told me to take it out and replace the converter and someone else said I should check the govenor but thought I'd see what people on here thought.