Update, two of the 3 specific kits came in and I have them installed. While waiting for them and recovering from surgery I found several Utube videos on Holley carbs. I have what I thought was rebuilding them for years. The videos explained what the specific passages do, testing power valves, adjusting accelerator pumps, and other things I most likely overlooked. I also found some trash in one of the bowls that I said "how the #%@& did that make it in there". We are carefull about fuel filters ect. while not cleaning the inside of the air filter carefully. The open bowl vents tubes are the largest opening available. I found what looked like a string off a rag and a chunk of something in one that could not have made it through the needle and seat. I will be more carefull from now on to inspect the air cleaner housing any particles. One more kit and engine test.