Running Sooooooo Rich! Help!
 

Okay so after yeanking off the valve covers and doing the gaskets plus drain plug 3, I went to start up the Supra and shes running REALLY rich. Like, stalls out in neutral, bogs from stoplights, kicks flames at stock boost between shifts RICH. Im trying to figure out what it is. Only mods are turboback and intake so i dk what to do. I think there may be a vaccum leak but I just dont know. Anyone????

Check your codes and your timing.

could a vaccum leak cause me to run this rich?

there was a diesel mercedes at city college here that ran rich from a vacuum leak, so its possible but i dont know about supras running rich from a vacuum leak

You need to pull codes.

I wouldnt be looking for vacuum leaks, only reason I would look for this though would be for the rough idle but in your case it is something else.

The computer is recognizing a problem and is having the engine put in more fuel to take care of the chance of blowing the engine.

Pull some codes and post them up here and then we can further diagnose it.