How many times has their relative had a Hemi?

Back around 1993 or so, I was cfuising through town in my 66 Belvedere 2dr post. While fueling up, the mechanic, in his 60's, walks out and promptly starts talking Mopar. Seemed like a nice guy...untill he tells me his 70 Roadrunner runs 9's with a stock 383!!! Telling me it was for sale got me intrigued cause, well, that has to be some special option that's so rare that Galien would be paying ME to look at it!



I could see it if he said 10's 383 cars were a pretty good setup, but its hauling alot of weight if its in a roadrunner