change spark plugs/maybe your inter coil is out/ maybe a new distributor...give em a try if u have a timing light look and c if your wires are getting power if so it is not ur coil or distributo then the only thing it can be is plugs.(if u aint got a timing light hold a Spark plug wire and have sum one turn the motor over it is gives u a zap there u go)..hope i helped JEff