yeah i know about that. I had another thread on that i think. I dont quite remember. I believe that my timing is fine. I checked it not to long ago. I also do have a ruff idle. I have friends that work at a custom shop and im not to worried about it since he does swaps like this into other cars. He can fab me up some parts. Anyways. I dont know where to start for my car with my motor right now. I guess i have to go through the whole thing and make sure everything is up to spec. timing can have a huge part in it also. When i swapped the new motor in. I got a tune up kit and replaced everything that was needed to be replaced. I still have to replace the stem seals anyways. So ill check the valves and everything and make sure everything is to proper spec. I dont know what would cause the bad milage. Any suggestions to look at?