I have had 3 Holley 3 bolts on a GMC 302. I ran off the center one and didn't open the other 2 until the center one reached 50% open. I plan on building a 302 like that, but it won't be in anything I drive regularly. Ever once in a while it is a good feeling to have more hp and watch the gray smoke roll out the back. I am of the opinion, however, that most most multiple carb setups are for bragging rights.
