Volume is a lot more important than pressure, many things can cause low volume flow which can increase pressure work
I've seen motors that we could not jet up enough to slow the MPH down in the 1/4 mile due to to small needles and seats, which cause pressure on the gauge but not enough flow at WOT shock
I had one new Holley #9375 HP carb that came with one .110 needle and seat in the front fuel bowl and the rear was a .120 size, it ended up needing both to be .120 to get enough fuel volume into the front fuel bowls to be able to jet it rich enough to slow it down the 1/4 mile shruggy Murphy loves messing with us hot rodders and racers whiney rant

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)