Hi I run a mildly built 235 with 3 rochesters on a Offy manifold I only use the center choke, it works great just pull it for for a moment until the bowls are full then side it in and it idles great.Ive never seen a progresive linkage on a triple setup. I followed the advice in the teck tips for setting up the carbs and they idle like a stocker for 2 years now. hope I helped? Bri...

Id have more 8s but I can't count that high