Stock 400 Piston Boost

There is a lot wrong with this statement. ^^ A turbo street engine by nature is a mild engine when not in boost. Statistically lower compression ratio, mild (ish) camshaft timing etc. Unless there is load the turbocharger is really doing nothing. A supercharger is driven by the crank, always spinning but not always making boost. Do you have experience with either one of these types of forced induction?
I didn't say the engine was always under boost, it's a no-brainer that the belt is always turning (unless we're watching an episode of mad Max LOL..) or the turbo is always being blown through..
No I don't think I made any claim to know about turbo or blower motors I'm only working on theory...
You don’t really need all that stuff but an MSD 6btm is a good idea. It allows you to pull timing in relation to boost and also keep a curve in the distributor that will make the engine completely docile when not in boost. You can do it with just a curve in the distributor (like 12 degrees initial and 28 total) but you loose a lot of the drivability.
and my point was having full potential of the motor at all times without losing one bit of driveability and having extra horsepower on top for those extra rare occasions when you want it... Well nitrous set ups are not cheap they're nowhere near they are out a Roots blower would be for an engine like that. and keep in mind he's calling from a slant 6 in a 64 Dart to a 400 big block which is already going to be a lot for him to handle.. unless he plans on tubbing it for some tires to hold that kind of horsepower it's going to be ridiculous Overkill...