340 4 barrel and 340 6 barrel: were they really UNDERrated?

I don't doubt the a 340 Demon ran 11.88 at 113. What's hard for me to understand is how it did it bone stock with only headers, gears, and tires at 3100 lbs (w/ driver?). It makes my little 340 Dart feel grossly inferior.
:rofl:
I am sorry, in review my posting today (Tired last night) I failed to include that
the camshaft was "Legal Stock Specs" but was a Competition Cams Cheater cam that
checked legal but was a WAY higher rate of opening. These trick camshaft back them
really helped the power out. The car was completely torn down after the record run and
adjusted to be Stock legal (They were very much tighter on the rules back then stock was muh
more really stock).

Anyone who has access to an old National Dragster Circa 75/77 can look it up as the records were
published ever single week unlike today where Dragster is once a month if you are lucky and records
are no long printed in them