I have a pontiac firebird 1967 with a 400 engine. When ever I take the car out and get on the car for a while going aprox 45 to 60 miles an hour and come to a stop the car stalls out. I start the car again and make it to the next stop light come to a stop and the car stalls out. After this happens a couple times the car will not start at all untill the car has completely cooled down. I have take the carburator apart and cannot find any problems.

Double check float level, is the fuel pump old? Auto or stick? What carb?

Steve

Sounds like vapor lock to me???

Sounds like vapor lock to me also

Make sure your fuel lines are kept as cool as possible so they should NOT make contact with any hot steel components.

Do you have an inline gas filter? Is the gas bubbling in the filter when the car get's hot.

If you are running a holley carb your rear float level is to high and you flooding out the engine as you stop.., lower it , that should work

If none of these things work, you might also try replacing the coil to see if this changes anything. I believe that a cracked/bad coil will sometimes act up after the car is warmed up since the crack expands when hot.

May want to run it until it does stall out again and then trouble shoot it to find out if it is a fuel or spark issue.

Could be a clogged fuel sock, or fuel filter
leaking plugs under the carb,
bad coil.

Its kind of wide open until you start narrowing it down.

friend recently had this...could drive a little further, but ...after trying lots of other things...it was a bad coil.

Are your fuel lines rubber or steel? You shouldn't have more than a foot of rubber line.