Hey again everyone! so this time we have a question about the carburetor on our GMC 5500, for those new we are working on a 1972 GMC 5500 with a 350 V8 engine inside of it. Person we got it from had given a new carb with it and while reading one of the manuals we bought for working on it we learned about the distributor advance/speed governer thing and swithced the vacuum lines to run that we think properly which gave us a better idle. but now we have like, 3 vacuum lines total for the carb and many ports closed off. anyone have any diagrams or anything that might be able to help us with this?