I recently bought a 85 Fiero with a 4.9 PFI motor but it has TBI! The previous owner had been driving it for over a year with no problems. It runs and drives but is running very rich. I have found that a few of the PFI injectors are leaking (pulling air in). There is no fuel rail to hold them down ! ? I'm going to get new O-rings ($8) Has anyone ever seen this?