Introduction and Problem Statement

we're talking about something today that i wanted to clarify for a long time what is the real reason that nascar do not sound like they used to 20 years ago or even 13 years ago it has nothing to do with most of the reasons you see online i've seen some pretty stupid stuff it's carburetor versus fuel injection or the engines were different or blah blah blah blah all this speculation as to why the sound is different i'm gonna show you what i'm talking about as far as the two different sounds because you may not even be aware of this but once you hear them back to back you'll know exactly what i'm talking about the primary sound difference that i'll be talking about here is from restrictor plate tracks like talidania daytona that's the signature sound that i'm referring to and it's not boom tubes either i know what you're saying oh it's the boom tubes it's the boom tubes it's part of it but it's not the root of