440 Tunnel Ram Help

for the street 2 600/650/750 vacuums may be your best choice. of course that depends on how much you can spend on linkage. the 600/650's can mount inline with side hung float bowels, simple inline hook up and the 750 with center hung bowels will have to go sidesways which ups the dollars for the linkage a bunch. my bracket hotrod had pretty much the same motor set up as yours and i used 2 600 vacuums and it would et to 10.90.