it was around 80-85 its close to redline for me. I changed the oil about 2 weeks ago. we were going about 110 the whole way back. I thought my t-belt snapped but when i took the valve cover off it was fine and i noticed the hole in the block. I just have intake and exhaust. I had nitrous for a while but took it off about 3 months ago. I ran a 65 shot.