How to prevent songs from getting uploaded with iTunes match?
(take a copy of your songs) delete the songs you don't want on match, re-add them but change the type (right klick, info) to audio-book hence iCloud don't upload audiobooks 



To be clear - the AudioBooks that are incorrectly marked 'music' cannot have their identifier edited (when already uploaded to cloud), as the Get Info> Options> Media Kind is greyed out. You must save the audio away from iTunes, and when you reload it, you can change the option before it's uploaded.