Hello,,New to the site and learning alot...Just bought my first Galaxie..62 with a 352 motor. Im looking for a 390 to put into it and I wasnt sure if I should go with a 570 or 670 cfm Holley Carb. I have the Edelbrock performer intake and now I need the carb. I dont plan on racing just an everyday driver with a little more performance. Its a stock motor so not sure if its going to make a difference...Thanks any advice, Dave