a vaccum leak can make the car run so bad and stall and stuff like that. at E-town I found this out! so the culprit was a little hose that went to the in. manifold from the tb. completely broken and rotted. just this made the car run hella better and the leak down test says engine is good for the future project! little 50 cent hose who woulda known. I bought a vacuum gauge at an auto parts fot 15 bucks and it is pretty handy at finding out problems as well as a stethoscope 10 bucks.