For the backfiring try adjusting the intake and exhaust valves, since I don't know how many miles are on the motor it could just be a tight intake valve adjustment but it could also be, bad ignition wires, cracked dist cap, overly lean fuel adjustment. For the high idle check that the three large brass screws on the intake are LIGHTLY seated closed and that the throttle plates are closing all of the way. Make sure at idle the idle micro is activated. Get the freq valve to buzz, it is needed for a smooth idle and to enrich the fuel mixture, It could also be the cause of the backfire because of the lean mixture. Check the relay that suplies power to the lambda circuit and fix the wire to the 02 sensor. David Teitelbaum vin 10757 --- In dmcnews@xxxx, njp548@xxxx wrote: > Hey List, > > Now that I got the timing right (using timing light, the notch on the > crankshaft lines up with the 13 degrees notch on the plate for cylinder #1) > but now I am getting a high idle, and my frequency valve doesn't buzz at all. > I was wondering what direction I should start looking in? Also I still have