Edelbrock Carburetor Tuning

The FIRST thing you need to do is verify that the float level [ 7/16" ] is correct. Most E carbs I have used had incorrect FLs, maybe bounced around during shipment.

Unlike brand H [ & clones ], you will not need new gaskets if you are careful.
And what does 'go flat' mean?

If the Weiand intake has a cut out in the plenum divider, the pri jetting may need to be richened slightly.