If I remember correctly, it was Kye Kelley who yelled out "don't nobody out-60-foot me" a couple seasons ago, so it seemed to me Chief was making fun of that after getting that monkey off his back.
Read up or ask someone who was there about the Gasser Wars of the '60s: those guys carried on even in Dragster, and it was sometimes very funny. It definitely packed the stands and brought attention to some of the racers.
It's TV, so you're not gonna see the quiet & analytical guys, as the emotional stuff is what they're after.
All things considered, to me the OKC guys are more likable, interesting & amusing than the NOLA guys, and so far the Memphis bunch just strikes me as particularly obnoxious.
Jeez, we're up to 8 pages on this deal!