help with holley 2 bbl vacuum hoses

OK guys, I dont know jack **** about a 2 bbl holley but that is what came on this 360 I bought for my sons car. So I bought a new 2245 Holley from ebay and I got it at a right price but has no manual with it. Looking at the 2 carbs, they are not the same carb. close, but not the same. I never saw so many vacuum ports. I imagine a lot has to do with emissions so I need some help. I am going back with basics. I found the fuel inlet. I have the vacuum advance to the dist. I found the big one on the bottom in the back that goes to the PCV that I am gonna plug off, or should I. The big black one in the front has got me confused. The one coming out the back that has the hose on it also.also which lines goes to the valve into the intake on the back. look at these pics and tell me what I am missing here.thanks,Bill