CAUTION!!!!!
Around mid '91-'92 Ford started using self cleaning throttle bodies and attachments. If you have a little yellow sticker on the top of the throttle body or the inside of the throttle body has a gold tint to it, DO NOT USE CARB CLEANER!!! It is to abrasive and will cause more problems. If you are going to clean, use simple green at full strength and then flush it with water when done. This is the safest way to clean the "self-cleaning" lining of these parts.
I'm glad I saw this post!!
Shelby