Take it to a gunsmith
I need to clean the barrel, not like a model 12.
Try e-gunparts.com
you need to have the ignition barrel in the on position otherwise you cant to it.
You will need to ask a gunsmith
carburator
Need a detailed description of all markings, caliber, barrel length to even begin to help
"Stevens_12_gauge_single_barrel_shotgun_with_no_model_number_or_serial_number_The_only_marking_says_Savage_you_are_having_it_repaired_and_need_the_model_number_in_order_to_order_a_new_stock" Where can I get help with this?
Need to know which maker & model #
Need to know the model and claiber.
Need to know who made it, how long the barrel is, exactly what 22 caliber it is (short, long, long rifle, etc.) and overall condition before being able to help with an answer.
Would need the specific model number.
You really want to let a gunsmith do this.