[KingLT1]

That 2650 is working a lot harder in that thin air. I can see in the log that it's past it's efficiency range because it's making peak grams/cylinder at the hit then tapering off up top. That is how stock blowers act turned up. My brothers 2650 on his C7Z at 18psi increases grams/cyl through the entire pull. But it's probably not spinning as hard to make the boost.

My guess is if you were at sea level then it would be making 23-24psi. So, 140 isn't bad based on that. I just thought you might have had air in the system when it hit 180+ on 2 different pulls.

My advice would be to run the 3.0 on the street and use the small pulley at the track with ICE.