I am looking for advice from those of you who have used dual quads on your AMC cars. I am using 2 new Edelbrock 500 CFM carbs on my 390. The engine has a 510 lift cam, offy 360 dual quad manifold, 70 390 heads, 69 390 block not bored, stock 390 crank, roller rockers, Rhodes lifters, crank scrapper, carter fuel pump, electronic ignition, MSD blaster 2 coil. My question is which metering rods and jets will get me in the ball game. The ones that are in there are too much. I am not sure what size they are in there because they are new carbs that have not been touched, Thanks in advance David W. Delabio