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

Seriously another 1/8 inch “PROBABLY “ isn’t going to give you much in the seat of the pants. I say probably as a disclaimer because there is no way everyone will agree with me. I’ve seen it too many times here.
Not to mention cost and frig factor
I say spend 3-400 bucks for a 150 shot of gas and go into the 9”s
Yes I already I’m going to get a lot of s..t
From saying this