Chuck, please feel free to jump on your soapbox as often as you like, I always learn something reading your soapbox talk or SBT.
One other note on headers, in addition to generating excessive heat in both the engine and passengers compartment, damaging spark plug wires and any other wiring that get near them, burning fingers, reducing clearance, dragging on speed bumps, generating excessive noise, making it more difficult to remove starters and engines, increasing engine oil and transmission temps. They also pass very close to the brake distribution block or brake distribution valve if equipped on 'A' Body cars creating conditions for boiling the brake fluid (see below, use wet temps) and in the case of a distribution valve damaging 'o' rings.
Ok, I admit it, I'm biased, unless I'm going to the track, I don't like headers for street use.