I had my doubts about 904s when I got my Swinger. When I was a youngster seemed like we were always pulling them out and replacing them with 727s when more performance was desired. I talked to these guys when they were still in SoCal
View attachment 1715964649 about the 904s. "We can build a 904 for any amount of power you want to put in front of it." was their response.
