[mustangman65_79]

I can't really think of any good ideas, so I'll just throw some at u.


Maybe your distrubitor cap is getting moisture in it at night and when u first start it up it has too much water in it.

Bad plug wires.

Bad coil, might not put out a full spark till it warmed up.

Sticking valves or lifters.

Bad head gasket-does your car put out any steam at any time, I mean a lot of it. Water could be getting into the cylinders.

Oil leaking into the cylinders.

Lifters pumpimg up too much or bleeding down too much after u shut it off and leave for the night.

Look for an air leak, could be leaking till it gets warmed up, making it run too lean for idle-after u shut it off and restart it, it might be resealing it's self.

Thats all I can think of for now.