I've done some digging around, and I get conflicting information. For instance, I have also seen the 190 hp figure mentioned in a lot of places, some places say that's for the 400 2-barrel, others sort of imply that it's for the 4-barrel. I found other places that list the 1972 400 4-barrel at 250-255 hp, which is the net rating, and they also list the 2-barrel at 190 hp. So that's what makes me think that the 190 hp rating is for the two barrel for all years. I mean, I realize that the power output of engines during this era were low, but I just don't see how a 400 4-barrel described from the factory as the high performance model would make less than .5 hp/cubic inch.
Besides, when I first got my 78 Magnum, I was all gung ho and found all kinds of information about the car. The information I found listed each engine that was available and gave the power ratings. For the P-code 400 they list it at 230 hp. They also list the 2-barrel at 190 hp.
However, in my eagerness to collect information, I failed to make a note where I found this information. All I have are the pages that I either copied out of the book or magazine or printed off of a website, but it doesn't show the name of the book or magazine or list the website so I can verify the information.
Like I said, I just find it real hard to believe a 400 listed as the high performance model makes less than half a horsepower per cubic inch, even with net ratings.
