I dont think throttle body cleaner will cut the carbon. There are carbon buster chemicals out there but they may take time depending on the amount of blockage. I had success using an old speedometer cable in a drill to unblock a passage in a honda. But that sytem was blocked in one small area. If it was me i would do it right and make sure the carbon is all removed.
Good luck Conner

Over the hill but still climbing.
88 Montero 2.6L auto, manual hubs, cooling fan conversion gps,recurved distributor,LSD Diff.