My ex-Hamburger SS/IA 340 Duster ran the Port-O-Sonic intake back in the day, apparently in its original combo.
When I got the car, it had a ported/polished Holley Strip Dominator on it, which appears quite similar to me.
Whether that was a later iteration of the car, or done in between by someone, I don't know.
The car was claimed to be the first 340 in the 10s - at one point 10.90 on an 11.08 index - and his deal was holding class records.
I went low-10s with the SD at 368" with the car - plugs always looked even, no lean/rich variation.
The car never saw street use, which of course is a different world, but was very responsive on return roads, FWIW.