Should I trade my swinger for a big block?

Do what a guy in Silver Springs, Fl. did. He found an absolutely gorgeous white 70 Swinger with a black vinyl roof and the houndstooth seats.
Slant Six,auto and air granny car. No rust no dents.. Perfect.
He then stuck a 440 in it...no problem. But then he stuck a set of 413 Long Rams on it. Mini-tubbed it, relocated Super Stock springs and 15x10 small bolt pattern Rallye wheels with about 7 inches of back spacing.
At one of Mopars at Big Daddy's, Dennis Gage just about fell over when he walked by it and saw nothing but those intakes. They gave it about 20 seconds of coverage on My Classic Car. It was an absolute torque terror and the 12.5 inch Hoosier Quick Times street legal slicks got overloaded instantly. And other than the fat back tires, it looked like a really nice 340 Swinger.
Has anybody seen another Long Ram Dart?