My understanding - which may or may not be accurate:Unclear about "with manual transmission only".
Does that mean for the Deluxe model?
I just posted an N code 383-4 Coronet 440 with 727.
Deluxe/440/500 with 383-4/auto, and anything with A/C, get the "383 Four Barrel" 330hp cam Blue/Carter engine
Superbees (with any transmission), and those above with manual transmission get the "383 Magnum" (sometimes called the Superbee or Roadrunner engine) 335hp cam Orange/Holley.
Add A/C to a Superbee and you get the blue engine (I assume because of the cam/idle) and now you have a "non-Superbee-engined Superbee" - go figure.