super six kits?

As Frank said, there is no kit, but if you find a super six setup at the local junk yard it will have all of the parts except for the ones you should buy new.
Parts List:
1. Intake manifold
2. Carb
3. Kickdown linkage (Auto Only) Lokar or original
4. As Chasduster pointed out Throttle linkage (the old linkage/carb has the linkage on the firewall side and the 2bbl will have the linkage pointing the driver fender)
5. Throttle cable
6. Air cleaner (stock super six air cleaner will have to be modified if your slant has A/C. and your 1bbl air cleaner is too small to fit the 2bbl
7. Manifold gasket (do not re-use your old ones)
8. fuel inlet line (at least part of it)
9. choke mechanism ( original or aftermarket electric )

Optional:
1. Camera phone: this is so that when you are out at the yard getting the parts you can take pictures of the connections like vac hoses, springs, linkages, choke, etc....
2. Web link: www.slantsix.org : for tuning, you are MORE than welcome to post here (and we slanters will answer) but it's been covered in GREAT detail on that board by some folks that have been working on slants for a loooooong time.

Are you looking to spice up a slant or just tinker? Either way there are a ton of other low buck mods out there with great results and most of them don't require a whole lot of skill.
Oh, and welcome aboard!