I swapped my valver covers today which required me to remove the manifold and what not. Newyas I went to fire up after a while so the sealant can dry, and the car started and idle'd around 1.5k for like 30 seconds then it just died and it wouldn't start back up for nothing!! I was thinkin I was out of gas but I put some in and it started for 3 seconds or so then just died again.. I'm stumped!
you say you removed the manifold do you mean upper intake and it sounds like you may have an intake or vacuum leak somewhere did you use a new gasket and clean the surfaces properly and inspect vacuum hoses for cracks and install all of them properly.you might want to recheck all the above...