So I just installed one of these Al fuel tees from ebay for a set of carbs I rebuild. I must say, it's worth it, super high quality and from what I gather, leak free!! I don't represent this guy, just sharing a good product.
http://www.ebay.com/itm/271656171800?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
http://www.ebay.com/itm/271656171800?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT