What's TBI?? All i got from that is you have an '84 Crown Vic with the 305 (5.0L) small block V8.
As far as the problem with the stalling, i'm assuming a carburator here, i'd check your timing and how high the idle is set. Another problem may be that the butterfly valve could be sticking open. My final suggestion is to check the air hose conected to the filter box over the carbeurator and make sure nothing has come loose.
That ought to do the trick for ya.