Hot no start

[FuptDuck]

Having trouble with my 69 Z/28 not starting when hot.  Seems to be a vapor lock or something.  Car starts fine cold, runs and drives fine up to temperature but when I go to restart it while hot I have to pump the gas repeatedly for it to restart.  Has original Holley carb, recently rebuilt, same problem before and after the rebuild.  Has original style steel fuel lines, no carb heat shield. 

[Kelley W King]

A simple item could be the square gasket at the accelerator pump rod. It is on the the throttle side near the front. You will have to remove the carb to replace it.  Even the local parts stores should have them. A tell tale sign is discoloration on the aluminum intake under it. The gas usually evaporates but leaves color. May not be your problem but with you symptoms it has in the past.

[Mark]

Is your fuel line touching the face of head or the edge of the intake manifold where it comes across the right front side of the engine?  My 68 327's line did that and it would vapor lock on me after parking and even when running on a hot summer day.  Pulled it off the face of the head by about 1/4" and it never did it again.