Donny,
Been there, done that. Just last week.
Get the IH carb kit. At about $45, you get all the parts for a complete overhaul and they are top drawer. Case/IH can get a float, main jet and idle tube just in case you need them. Make sure you have the part # off the carb, there are two versions of the IH carb on the Cub. The two part numbers are very different, so if you can only read a few of them, you'll be able to figure out which one is which.
On the other hand, for $22-$30 you can choose from TSC, Tisco and Valu-Bilt. These kits are identical, down to providing the WRONG instructions, poorly cut gaskets and missing pieces. The difference in quality is shameful. These kits only provide basic necessities, so you're not getting a bargin in my opinion.
Still a bit POed with the off-the-shelf kits, but I learned my lesson.
Lurker Carl