A Mopar magazine run an article from a guy in Livermore, California who owned a 1974 RR/GTX and claim to have documentation that only 79 RR/GTX were built in 1974. /QUOTE]
Sorry, I make a mistake, I apologize to the guy in Livermore, Mr. Sean Chapman.........
I find the magazine after I made a comment. Mr. Chapman said that there is 386 RoadRunner built with the 440 engine and have documentation from Chrysler.
The magazine is Mopar Collector's Guide from may 1992, but, Mr. Chapman never send me documentation.
Here is the article in MCG......