'91 GT Starts then dies after starting on a warm engine....

91StangGT5.0 said:

What is the spec/reset for the timing and idle? I have quite a bit of upgrades and higher than stock compression so I doubt stock settings will work out. What would be a good start to set the timing and/or idle at?

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The procedure will still be about the same. I'd set timing at 10-12* for right now. You're just trying to get it running decently.

This might help with trying to set the idle (there are a couple of methods, all a little different).

Ford Mustang Base Idle Reset

Be sure to put an index mark on the set screw so you can keep track of all of your adjustments.

You can also find idle reset info in the Surging Idle Sticky.