I have a 3600 9x11 L/U.. When I slam the pedal down, it goes to 5k+.. Daniel, put it in, if it feels too loose and you end up not having RPM's drop... then add a cam and up your shift point. Easy.
I like to see rpm's come down 700 every shift, that 3500 wont come down from 5000-4300 when you make a shift at high boost.. unless its locked, and thats another story.
HTH