I'm about to change out the plugs and wires for my GTP and was wondering what the best plugs and wires would be for me to put in? Is there anything better then the AC Delcos that come stock on it?

There's nothing better than OEM wires.

Plugs you'll get a variety of suggestions on, depending on how often you want to change them or how much KR-killing power you want out of them, etc.

NGK and Autolite are popular here.

i use autolite. they are cheap and help cut some knock.

IIRC, Delco plugs are actually NGKs since NGK makes them for Delco. I think I saw that somewhere on here, I'm sure that if I'm wrong, somebody will chime in

You probably saw me say that, and it's true of most of the Platinum/Iridium plugs. You can pick up an AC and it has NGK stamped right in the metal. My GTP engine at the house had NGK double platinums in it, and I have no reason to believe those weren't the factory plugs considering its unmolested/unmaintained state.

Overall, I'm a big fan of anything made by AC, NGK, AL, or Denso. Choose from those four and you'll rarely have problems.

Rook pretty much covered it....all good plugs and wire companies