To find a kit for the Carter you may need to go to a Case-IH dealer. Oliver even had a published listing if you needed a new Carter you would not get one. Do you have an Agco dealer that was an old Oliver dealer close by? You could check to see if a gasket set  and needle and seat is still available. The reason the coil is placed terminals down is to help keep rain, etc out of them in case the rubber boot is shot. Christ has the correct number for the filter. It is papaer on the inside. Anyhow getting back to the Carter carburetor a Super C Farmall will have a Carter carburetor. The Venturi size is the same so you might want to check on the gasket set with some measurements first. I can probably look up the Carter numbers since it rained here today. More questions?