Finally some Dany's Mag swap progress, and fuel line routing questions?

I never fixed this on my Challenger, would drive 60 miles to the track then drain the radiator and refill,
then get back in line. Long ride on the interstate warms up the whole car, quickest way to fix it is to dump all the water and refill. Otherwise I'd have to wait about an hour to make a decent pass. Much easier to dump the water and start over. I think moroso or somebody used to make a quick take apart for the upper hose that I saw on the serious racers. Of course they weren't running a thermostat either!