After reading many posts on how to set up IFR I am curious as what to do when boost is applied?!
I am in the process of tuning a 2000 Sierra 5.3L with Whipple charger and #42 Delphi injectors. The fuel pressure regulator has a vacuum line hooked up to it.
Fuel pressure measured at the rail is 46-48psi at idle and 57psi when getting into 100+kPa MAP.
While still getting the bugs worked out and still waiting for the 2bar sensor to arrive it seems very difficult to get the desired AFR at boost to where I want it to.