1 3/4" Headers Verses 1 7/8" on a Healthy 408....Is There a Big Difference??

All this header talk in many ways is directed at people who want to get every hundredth out of a car they can.... class racers, etc, etc.
Me, ... not so much. Whether my car runs 10.65 or 10.75 because of using one header or another, I could care less at this point. I am going to bracket and index race it, so every last tenth isnt needed.
I have to look at ease of installing, cost, and other factors first.
If i cared about going fast, i wouldnt be sticking tiny eddie heads on a 418 inch motor in the first place..lol. Or for that matter, even Trick flows, if i had them... too small as well
I will know if it runs as it should, that's good enough for me at this point.
I'm a bracket racer too....but I keep getting that itch to go just a liiiiiiiitle bit faster, LOL. I probably should just leave it alone and keep the money for incase I kill my old 8 3/4....I named that rear end "borrowed time" :D