Old Acro:
Essentially, you are correct, but it may interest you to know that TCM created a pulse injector system more than 40 years ago. It worked. They discovered that at the rpms and power settings these engines operate, it showed little to no improvement over the constant flow nozzles… but with much more cost and complexity, so the project was scuttled.
It is easy to throw stones at TCM about the "old technology" but in many cases the "old technology" is still better than anything available "for the aircraft application."
There is nothing, and I mean NOTHING that has come out of the auto industry that can compete with the TCM or Lycoming engines at the power settings we consider "normal." According to one engine test engineer in Detroit, if the best engine test facilities in Detroit run their best auto engine at 75-80% power, they can only get about 300 hours out of them. If it were easy, everyone would finish the 24 hours of LeMans. Not all even make it 24 hours at the same powers we ask of our aircraft engines every flight.
It's worth pondering.