Mine are Stromberg's and not Holley's. Yes, only the linkage tying the two Carb.s together is on the drivers side, the rest is on the passenger side. I believe, with the Holley's the throttle shafts are not long enough on the drivers side so some replace the shafts with extended length shafts. I am not recommending any place but "Vintage speed" web site has photos as well as the Stromberg web site, if your looking for ideas on the linkage.