03 Cobra goes strong to 4500 rpm then goes flat like its running out of fuel or drops a cylinder! Idle is perfect and runs fine if your not over 4500rpm. It did throw a few codes. The first was a Air Intake Overheat, 2nd-Fuel pressure rail sensor-(I changed that sensor and no change). I have a fear that the fuel pumps are going out. Anybody else have this prob?????