Well, here is an update. Turnes out I had 2 problems with it. Small vacuum leak in the intake manifold as well as a bad connection to the MAF. Smoke testing the intake was a huge help. I would have never found that otherwise. 3$ junkyard connector and problem solved. Now here is the next question. How long do you think I can get out of that engine? It has 300K on it and I'll be happy if I get 10k out it before I have to do a swap or a rebuild. While I had the manifold off, I went ahead and changed the plugs, new vacuum lines, coolant lines behind the engine as well as valve cover gaskets. PCV valve as well. Anything else I should take care of while I have the intake off? Also, I am wondering what type of tires people prefer for their stock R50 as well as size? I do not mind if I have to trim anything.