maf conversion -5.0 SO Reply #15 – August 17, 2006, 07:37:10 AM I did play with the fuel pressure and ran the proper calculations, and I had to drop the fuel pressure to around 25 psi to get it to work properly. I don't like the pressure being that low, but I really want to use the 19 lb injectors that I have.Is there any way to make the speed density computer recognize the 19 lb injectors?Thanks, Scott Quote Selected