How big is too big? I may buy new ones since I'm getting a swap tune anyway. I was wondering though what's the biggest that I should run on a mildly modified 4.6 dohc my eventual plans are to sc the motor but that's years away. Currently I have a set of 24lb/hr rebuilt flow benched injectors laying around will this be more than sufficient or should I upgrade? I currently also have a walbro 255 fuel pump installed as well.