Spark Plugs, Tuning Engine

Two of the Spark Plugs have snapped, and the others just aren't doing too well. I ordered a whole new set of Ignition Wires and Bosch Spark Plugs. Apart from this, the engine needs some fine tuning. The 924 is not starting up at the moment, but obviously because of the Plug problem. Once I get them in the mail, I will set them in, and the car should hopefully fire up good. Afterwards I can mess with the Distributor and get a well sounding tune- which should in turn, help the slugging the 924 was suffering from earlier on.