I have just fited a nova GTE engine with a 2.0 airflow meter and driving carefuly it is returning 24mpg and when it starts it wants to cut out for the first 2-3 mins at idle but then its ok.
also if i put my foot down below 3K it is like its over fueling and bogs down (if that makes sense ), occationally starting to kangeroo. But when it gets to 3K its off like ***** off a teflon shovel
have re-set the ecu and it helped the starting a bit but not much
cheers for the help Matt