Eddy 1406 600cfm Metering jets and rods?

I have this carb on my mildly built 318. I would try it first before changing anything.

Go to the Edelbrock site and download the manual if you don't have it. It's about 30 pages and has charts that show the combinations of rods and jets. I bought a strip kit that has several jets, rods, springs.

Using that, I've never had a carbureted engine that has such perfect textbook plug colors.