Bought a new one, one that had gasoline running out all over the place, in fact it even filled the crankcase. Some else was trying to fix it and knew less than me, so I really don't know what they did. I replaced the pressure regulator, which I believe was the origional problem, however there was another intake manifold in the trunk with parts missing (are they on this car now?) I don't know. Got it running pretty good and after driving it for a while (40miles) it started to misfire and jump around. Then it started to surge, like sometimes when I start out from a light, it will go very slow, even if I floor it, then all of a sudden it will go like a raped ape. If I keep my foot on the gas steady, it will go around 40mph and slowly slow down and then it will take off. Where do I start? Please.