Holley 650 Choke vs No Choke flow test

Oldiron440 said
I've tried the stub stack on both my 650 and 850 it was worth about 6 to 8 hp on the dyno. I had considered removing the air horn on both but have decided against it.

I was just going to ask about that stub stack. Just wondering about all the options here. Choke tower cut down, no choke tower, K&N stub stack and how they compare. I wonder if running the K&N on a cut down tower would be of any benefit?