Long limber rod, at least 7ft, 8ft is better. Medium action, maybe medium light. Small hooks and the least visible, softest line you can get. Probably 10-12 lb line and a reel with a good smooth drag, the Sphero's should work ok, but I like a reel with a baitrunner feature in it. Carp, even big ones, have a soft delicate mouth, and a stiff rod and/or heavy drag will rip the hook right out. They need to be able to run with the line, and they will run a good distance too, so you need some line capacity.
This pond you're talking about, it's not grass carp in there, is it? If they are grass carp (Asian carp, etc), they will not hardly ever take a baited hook. I've only ever caught one, it was on a nightcrawler smack on the bottom, no weight at all. Grass carp are a totally different fish, really. They have a hard bony mouth with rough jaws for shearing underwater vegetation off to eat. If you see these big fish in a pond, cruising the surface a lot, chances are they are grass carp, put in there to control the weeds and grass in the pond. Then your best bet really is a bow and bowfishing set-up, unless you can snag them with a large weighted treble (not legal in all areas).
