About a year ago there was a nice 1990 regal racecar for sale on racingjunk. I thought it was chevy powered until i clicked on the gallery photos and it turned out to be powered by a stage 2. It had purple valve covers and lots of purple in the engine compartment. The guy said it had run 8.9's at 154. I think he was asking $30k for it. I don't know if he used nitrous but it didn't look like it from the pics. It had dual carbs and really odd, really long stainless headers. Pretty cool....