need help for a missfire
i have a 2003 4.0 5 spd edge that stumbles, shakes and acts like its going to stall untill 1600+ rpm. it has a new coil, newer wires (10k miles) new plugs. the fuel psi at the rail is 62 psi, compression is 160psi on all cylinders, there are no codes or lights on. i am completly stumped. i use a spark tester all plugs have spark. it has new intake gaskets, and a new pcv elbow. anyone have any clue on what could help?