Hi, I hope no one thinks this is too dumb a question, but I have to ask. In my '57 Belair, I'm running a 671 BDS blower on a 406 sbc. I have 2 Edelbrock 600's mounted on top. I don't know if this is the proper terminolgy, but the carb. linkage is "progressive"; both carbs. work together all the time. So, I have 4 barrels constantly feeding this engine. I knew it wouldn't be good on gas when I built it, so I can't complain about it. But, I didn't know gas would reach the price per gallon that it did either. I'm self taught with putting this arrangement together and would like to know if its absolutely necessary to have this type of linkage? If so, why? I appreciate your thoughts. Thanx, Carmine.