[79broncoowner]

The past week or so my 390 in my bronco wants to keep running when I shut the switch off. I have not touched anything on the engine in at least 2 months. What is the problem Could it be the gas I am using? I know what normaly causes this problem like the timing or idleing to fast. Any more ideas?opc1:

 

[Jasonhughes2009]

its telling you to put a powerstroke in

 

[JfB_93]

Timing is a factor I've found, also a poorly tuned carburetor. Check and set timing first and see if that cures it.

 

[79broncoowner]

Timing is fine and so is the carb. It took a long time to get them perfect. Like I said this only started in the past couple of weeks.

 

[Fireguy50]

problem with the igintion switch of its wiring?