Amazing. It may be the aluminum radiator and replacement factory fan ... but no, she was still stalling out.
That was it. Re-routing the fuel line so it was not resting on the intake. Took me five minutes ... fix a problem I've been battling for years. Good news is, new fuel pump, new fan, new radiator, new voltage regulator, alternator, water pump, battery ... everything is new on it ... and it just runs like a champ. I tell ya. There's no replacement for displacement. We'll see if I can drive her in 110 degree Arizona heat ... that's the real test. Anyone try Watter Wetter?
Also I put in some 89 octane gas. In Arizona it can be up to 10% ethanol.
This is a ribbed service block 428 with a 1U stamped crank. You could call it a Cobra Jet ... with mild, pretty standard heads. My first FE, but I am an old Ford guy. Been harder than I thought. Does not like heat. If she gets too hot, she starts puking trans fluid out of the front seal.
I added a trans cooler, as well, but so far the aluminum radiator is performing really well, despite the fact that it doesn't fit perfectly.