I just bought my first e30 a couple months ago in the form of a 1984 318i. The previous owner was using it as his daily driver up until he stopped using it. He took it on a road trip and came to find out the rear subframe was bad and running the tires. So he put it up on Jack stands, covered it up, and there it sat for the last 10 years. First things I had to replace were the fuel pump and starter. I changed the oil obviously, and the vacuum hoses are in decent enough shape to at least get it started. Recently replaced the plugs and wires after I was able to get it started. Problem is, it is running like garbage. Well not stay running without giving it gas, and you can barely get it to reach 3000 rpms. The alternator is bad and out of the car but I don't think that would cause it to run so poorly. The battery I am using has plenty of power and has no problem turning the car over. I took the fuel line off the fuel rail and it is spraying plenty of fuel, not the fuel filter, could still be the injectors though. Replaced the ignition rotor and the rest of the distributor looked in good shape. What else should i check that could be causing it to run so bad?