ok, i spent some time under the bonnet yesterday, changed spark plugs (ngk laser platinum) cleaned afm thoroughly and checked/cleaned igniter packs, also wrapped them in electrical tape just in case,
all seems good, no more surging or choking, but this typical r33 flat spot you all spaeak of is now obviuose, doesnt do it all the time, but every now and then when i boost it hard. for now, it doesnt really bother me, it still eats most ls1's so thats all im worried about at the moment ; )
i also took out the bleeder valve beacause it wasnt always hitting the 11-12 pound it usually does, instead it was only reaching 5-7 pound.
it didnt seem to make much difference without the bleeder valve, but does it matter if i leave it out?