It happens to be the Displacement of the Blower. 2576cc The Hellcats is 2380 cc
So whats the 35?? PSI, I didn't figure it out, not really sure what it is, Could be the blower PSI. But the Motor trend guys that got the info, say 35 PSI is to high at the blower, and say it could translate to 20 PSI manifold to make sense.