Shuts off when hot?

I have a recently restored 1970 340 4-speed dart. Factory dual point ignition. Everything is either NOS, new or restored. When I start it up it runs until it warms up then stalls and won't restart until it cools off. All voltages seem to check out, both before starting and after it stalls both to the ballast and to the coil. Carb is good, fuel is getting to carb ok, seems like some sort of heat sink but I can't find it. It's just me so I'm not able to check under the hood and under the dash at the same time for wiring issues. Harness is new, bulkhead connectors have been checked and rechecked several times, same with fuse box. Alternator has been restored, two new coils have been swapped in and out, with the same results. NOS ignition switch, good original turn signal switch, distributor was rebuilt and setup on a machine for dwell and advance. I'm not interested in changing to electronic ignition so please don't waste your time posting any replies stating that. This is a restored, stock appearing car. It turns over fine after it stalls but doesn't really even try to fire, carb shoots fuel when I pump it just fine so I'm sure it's not a fuel issue. I've cleaned up grounds in several places. Any ideas?