73 will run but when i come to a stop it dies and wont start back up unless i roll start it

i have a 1995 f350 that has been setting for 6 months i got new batteries changed the oil and all filters that being oil fuel and air i also changed the ipr valve, the icp sensor and the valve cover gaskets and wiring now the truck will start kinda rough it dose run until it gets hot then when i come to a stop it dies and wont start again until it cools off or if i roll start it any ideas what i should check next i am really tired of just throwing parts and money at it. anything will help