by bigblockmark » Sat May 21, 2022 2:30 pm
Guess because of the title of this thread, no one else is likely to join in.
Braswell is the one that made more than 3 circuits popular in Pro Stock.
I think 3 circuits in stock Holley dominators was popularized as a sales gimmick after the real need was only for tunnel ram or individual runner Pro Stock briefly. The real benefit was the use of annular discharge boosters, with the 3rd circuit coming along for the ride to be an "improvement" to make more sales. After that Holley never really developed any good 2 circuit dominators.