all is different i guess, i have e4od with 4.11's i can see about 10 real fast in 1st. then 2nd gear see 10-15psi and it will maintain that thru 3-4gears then while cruising 55-60 i see 3-4psi. and i soon as i stab the fuel pedal it will ramp to 15 and thats without a 3rd gear downshift. if it did downshift boost is at 15 before 3rd fully engages. but keep in mind i also have turbo upgrades but still have factory pump and injectors.