I was scrolling through some pics on here the other day and saw this and contacted the guy that owns the car through PM. The air cleaner is the one that fits the tri power corvettes. He said that the base fits on the mopar carbs with no modifications. Thought this might be an option for some people that don't want to use the large factory air cleaner. It fits under the stock hood of the 1969 440 barracuda. Here is a link to the air cleaners for sale on ebay.
http://www.ebay.com/itm/251415625070?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
Link to filter: http://www.summitracing.com/parts/knn-e-1970/overview/
http://www.ebay.com/itm/251415625070?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
Link to filter: http://www.summitracing.com/parts/knn-e-1970/overview/