Roger--you got to look at this from a RULES perspective!!!!!!!!!
there are lots of rebuildable(and running) ls engines out there available WITHOUT the ecm and wiring, manifolds and injectors throttle bodies---

they can be put in a local rules race car withdistributors and carbs pretty cheap because the racers don't then need complicated wiring and high pressure fuel systems----

AND ALSO------------- ecm controlled engines can be micro adjusted for a very effective traction control that the racers don't want--------