Nope. It's been what, only 2 years in to NASCAR actually having EFI engines? Even then, the teams were restricted from being able to use all of the data from the ECU, so everyone had to run at gimped tuning.

V8 Supercars, for example, debuts more tech in one race than NASCAR does in a season. Even WRC Rally cars are questionably more complicated.

edit: EFI was introduced 1 year ago.