Got a problem with my H22

Got a problem... I just had an OBD1 JDM H22 swapped into my 97 Accord. I'm experiencing some problems.. I have fuel in my oil, what would cause that? And does that have anything to do with smoke coming out of my exhaust? My car is running RICH.. How do I cure that, and are these problems related? Any help or advice would be greatly appreciated..

sounds like a head gasket problem to me. if its not that then my other guess would be blow-by. this means your piston rings are failing. run a compression test on each the cylinders to try and isolate the problem. both would account for the smoking exhaust, but i dont understand the gas in the oil thing. i dont think those two ever come into contact with each other enough to have a noticeable amount of gas in your oil.