If you haven't changed anything from your first picture,you're distributor vacuum line is correct.Since there is no vacuum to the end carbs,is the main vacuum feed on the center body plugged, can't tell from the picture ?
How many turns out are the mixture screws on the end carbs ? If they are out more than 1/4,1/2 turns you are probably running rich and that affects center carb adjustment.In most cases,1/4 turn is all that is necessary and even less with a stock engine.