Edelbrock 500 vs. 600 cfm fuel milage

Gotcha, sorry. My thoughts were that if I used a smaller CFM carb, that I could possibly get a little better fuel milage, whatever it was. Every bit helps, but I understand what you mean about the smaller carb could actually negate any gain expected. I am constantly trying to improve it. I love the snot out of this beast and at times, prefer to drive it over my 2018 Ram.
I'll look into changing the metering rods next.
Thanks!

It "could" negate any gains.....it just all depends on "where" it is with the 600. I don't know, once I get something running as well as you make out the 600 to be, I leave it alone. lol