There is a rebuild kit offered on Ebay. However, those who have purchased it have not been very pleased with the contents.
It's best to buy the individual pieces from an online OEM parts vendor.
Recently I have been very pleased with the prices and reasonable shipping of Ron Ayers.
But there are others.
I bought the ebay kit. I just restored a 93, put all the desirable farkles on, and was most satisfied w/that rebuild kit. Loved the oversized jet that created the super smooth idle and took away most of the cold running issues I had prior. Best $35 I spent on the whols restore!