LoL
I didn’t see them mention the Feather Duster with aluminum parts, thought it was hood and fenders, but WIKIsays it was just brackets and bracing. Going to have to re read the article.

Buddy of mine in hi school had a ‘70 Dart with 440 6-pack 4-speed
(Not factory )
With fenderwell headers.
Helped him change the spark plugs and we had to pull the engine to get the headers off to get to two of the plugs
Then reverse the process.
Took a good 6-7 hrs

 

How well I remember. The '71 340 Demon would draw a lot of attention to itself sitting at an intersection or a burger joint. It would kick some serious butt street racing, for those of us yet matured enough to know or practice better behavior. Excellent article.