[quote=&quot;John Schwiebert&quot;:gs9u37kg]Your tractor could have either one. I would call my local IH dealer and at least get a price. You get a chance get a basic TSX and then just put a kit in it. You could rework a TSX from several other sizes of Olivers and have the correct throttle and choke shafts.[/quote:gs9u37kg]

Check to see if your intake manifold is leaking. Mine drove me nuts with carb rebuild, ignition, the works, until I found that my intake gaskets were gone. Runs perfect now.