Yet another "what will it run".

Your mph is up by almost 4. That's significant. What rpm is it trapping at with the 3.91s?

I didn't pay attention on the 107 mph pass, but the final pass it was at 5,200 at the line. The converter flashes nearly that high, so I think I am slipping my way down the track. The car E.T's faster the lower you shift it. I think 4,800 rpms. might be faster yet, but the converter is screwing me. I am thinking 4.30 rear gears, and the .528" solid would be a much better combo. Does that sound logical?