hi dean, glad to see your still here, haven't heard from you in a while.
have you fitted an aftermarket air filter by any chance?. if you've removed the heatsink from the ignition module theres a high chance its fried. always keep the ign amp cool.
other possibilities as already suggested are maf. I doubt its your coil packs being an agu as these are pretty bullet proof. never say never though.
as MAC said, unplug the maf and see if it runs smoother. that`ll point towards the maf.