i have a '69 mustang with a 302. When i first start it it idles fine but once i've been running for about 10 mins. the idle just keeps getting faster and faster. i don't know if it's just a carb ajustment that would fix it or what's going on
No info about your car whether it is EFI or carb, no mods listed. Some of the early cars have been modified to EFI, which can be Mass Air or Speed Density. Makes it hard to troubleshoot when we don't know what you have.
That's why it is a good idea to use the sig under the user control panel (User CP) option. It allows you to post your car year & mods, which help greatly when troubleshooting things. No, it is not there for us to snoop and see any "Secrets" you have hidden away under the hood. Be a good Stangnetter and update you sig for future reference & don't keep us guessing.