[pastry_chef]

Originally Posted by HWYSTR455

I don't think the secondaries are adjustable on any of them, but could be wrong:

https://www.edelbrock.com/pub/media/...ers-manual.pdf

That manual is for the original (old) series.

Here is the AVS Thunder Series.
Page 6 has the secondary details.
https://edeinstall.wpengine.com/wp-c...Carburetor.pdf

Seems they have a newer AVS2 series.
https://www.edelbrock.com/avs2-800-c...gine-1912.html

Might have a different version of secondary tuning --- "Additionally, the unique Qwik-Tune Secondary Air Valve allows for limitless calibration of the secondary circuit. Adjustments can be with simple hand tools in seconds to suit your application."