Yeah im a bit confused by it my speedo was off a little. So i used a GPS and even still 71mph was my top speed screaming around 4 grand, something is not right. I do hear a slipping/surging sound if I am around 20-40mph and goose it but besides that no other issues the shifts seem fine. I been trying to baby it until i figure it out. I installed this motor with trans from a junk yard and put it in the car so i have no history really on it other than being told it was from an RV.
