Hi All:
I know I have seen this question before but I cannot find the post so here it goes. I have a 1963 Impala with a 327 300HP engine. It also has a Muncie 4 speed. I have a 1963 carter carburetor that has seen better days and after 3 rebuilds and 1 remanufacture it still does not work right. I am looking at getting an Edelbrock carburetor to replace it. I am trying to decide between the 500 and 600 CFM versions. What are the pros and cons of both?