Edelbrock Experts I need your thoughts

RustyRatRod said

The 1406 is an economy carburetor. The 1405 is the performance version. You cannot tune economy out of the 1406 because there are many differences. There's a thread around here somewhere that tells all about it.

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Yep, this I know. I've got that thread saved to my bookmarks. Im not going for performance, Im just trying to tune it better for my car. Im just trying to wrap my head around the jets/metering rods. I've spent the last week reading, but havent run across this in my reading and I want to know if Im thinking the correct way.