Carb help * the famous debate and 2x different cars

My god this thing is still going on :) !!! Yes i received my 750 edelbrock by mail yesterday and was dissapointed....i knew it was used but its not in the best condition for a used carb , needs a kit but i dont like the fact that the butterflies are a bit hard to open , looks like dry gas and carbon was all aside and on the sides ( linkages ) & i went to get my new 750 cfm holley 4779 too , so now i have the 300hp *crate to finish and my 380hp crate duster that needs a dpumper , i ran the 650 dp on it since 2008 , its a street driven car but that is capable of low 12s and high 11s , performance is a lot of knowledge , i always heard that a 750 edel wasnt flowing like a holley so...thats why i opened this thread.thx for all the answers