I have a 1955 Ford Thunderbird Y-block that starts well when cold and runs fine. It will not restart when hot after being shut down for 15+ minutes. Read most of the posts; 1. Turns over freely, proper battery and right sized cables. 2. Has a phenolic spacer. 3. Added inline 2 psi electric fuel pump 4. Carb has been rebuilt with ethanol gaskets and tested/ run on a Y block 5. Fuel lines and regular fuel pump replaced with ethanol components. 6. New coil 7. Added Pertonix electronic ignition. What am I missing? It needs to sit 4-5 hours after being shut off hot. I am getting to be to good a friend of the tow truck driver.