Dang sounds like my last trip to the track. My car did make one poor pass before my spinning and then hook pass. I thought it was good until I went to launch the car and it went into what felt like a neutral . I found it still pulled a little so I tried to shift to second and it locked up completely. Found the sprag came apart and lock the rear drum. When the rear band applied it locked up. Now waiting on my new super sprag for my 727. Oh by the way mine is a 318 422 cube engine too