Update:
In the pics
283 - 1 ,
283 - 2 ,
283 - 3 , you can see what I have. There is a valve at the distributor to te carb front, one tube routed from the backside of the carb to the power brake booster and one tube coming from the oil filler neck. Are they all for vacuum and is it correct that both valve cover caps and the oil filler cap are "breathers"? I am not really sure how it was OE and I don't have anything to compare over here.
Since am going to be installing the Edelbrock 1405 (I got a new one for $120.00), can someone help which tube is for what and where to connect?