People that have no imagination will say that it is not worth it...bs IMO..
I will build an early hemi regardless of what anybody says. It will take forever though...lol..
Also, a 392 not a performance engine?? 2x4's and 375hp isn't a performance engine??? The 440 Magnums were also rated at 375hp. I guess they are not performance oriented either.
Build the early hemi if you want. When they say "why?" say "why not?"