Hi I wonder if anyone could help. I recently brought said engine off a friend which was running great in his car bur now it's fitted to mine it's gained a major flat spot. The only difference between the two cars is that he has a four branch manifold an mine is standard. So my question is do you think this will need to be remapped to compensate this??
Cheers matty

have you reset the throttle position sensor in the software ??

No I haven't reset any think (well not knowingly lol)