You mentioned a white vapor rising under one injector. That would tell me that the injector may be leaking or stuck open. If the one injector is dumping to much fuel that could cause the symptoms you described.
Hi I am working on bringing an 89 Suburban back to life after about 20 years of rest. I am working on interior now. I will be working on suspension and drivetrain shortly. I was searching internet to see what others had done with a square body such as wheels tires suspension etc. I came across...