M1 or Port-Matched LD4B on 408

That's not a brag.
There is so much information in that one short post, mostly contrary to the accepted party line, that most will dismiss it , just like they do so many other things.
If a person pays attention to what his street-engine is saying, that person could have a carburated engine that runs as good or nearly as good, as any bolt-on EFI system. Let me rephrase that ;You couldn't give me an EFI system to replace my 750DP.