Sputter @ high rpms with pedal all down!

[MKIIISupraTurbo]

Well, Thanks For the Reply!!!.....I tried adding some fuel injector cleaner in the tank, but that didn't work....also new plugs and wires, no luck with that either. If I had to guess at it, i would start by looking at electrical problems....the plugs were golden brown, so it seems not to be a timing, fuel or spark issue!!!.....it's driving me nuts!!...lol....Anything else you suggest for cleaning??....Thanks, Matt