Re: disconect battery and then rubbish fuel economy
Let the ECU relearn, usually takes a week i've found. My trip computer said that i was using alot of fuel (after the reset), but by the next tank it was back to normal.
Apart from the cam have you got any other mods ? the bigger the cam usually the more fuel you'll use, but not that much with only the one mod.
Proud owner of a Ford Falcon 96' EFII XR6, 5 Speed, 2 1/2" exhaust, AUII XR8 air intake snorkel, BMC Panel Filter --> extractors are soon on the list of things to do.