wasn't trying to jinks you :rolleyes:
sounds like it's vapor locking. my 74' used to try and do the same thing any time i was sitting in traffic too long, as soon as i take off from a light it would sputter and get ready to die. usually i'd kick it in neutral and feather the gas until it caught, drop it back in gear and keep rolling. that picture of the gas line laying, or almost laying on the intake is one possible issue. move that line and reroute anything else too close to a heat source. also might want to try some
heat shielding. and if that doesn't do it electric fuel pump and a good regulator might be in order. as far as the gas tank venting, pretty sure yours should have a vent in the top of the filler tube. look in the trunk at the top of the tube. you also might want to think about doing a fuel return setup to keep the gas from deadheading at the pump.
HERE'S a little reading on that.
View attachment 1715549577
with this you shouldn't have a vented cap.
also, as far as semi warm starting. i've had a few that that hated to be started when just a little warm. they're easy to flood too. i usually just hold the gas peddle down about 1/3rd of the way and crank the starter and it fires up.
good luck, you'll get it. my kids have their share of "dad's car died" stories. :lol: my daughter still misses one dart i sold over 20 years ago :(