I should be a little over 400 hp based on my last dyno and what I've done since. I had always run the factory fill, syncromesh I think but recently went to the redline oil in the transmission. I tried to pull the sled in 4th low, I took out the spiders in my differential and when I got that fixed the transmission died about 150 miles later. It's been sitting a while now and I just got to taking it apart. I am debating going to a G56 considering the cost of the 1 3/8 input shaft and rebuilding this one, especially since I can't seem to get the old input shaft out.