According to www.nhra.com, bleach was first used for burnouts at an NHRA event in the summer of '69 (cue Bryan Adams!). That's 10 years before Dukes started.
I think I remember discussing how they achieved smoky burnouts on the show with Tom Sarmento, but I just checked, and it was almost nine years ago that I met him!
Went to see Top Gun. Half way through I didn't think it was as good as the first but after it was over I thought it was better. I'm going to see it again.