See there is an Edelbrock B262 on ebay right now, complete with carbs... Click Here... (http://www.anrdoezrs.net/click-499229-5463217?loc=http%3A//cgi.ebay.com/ebaymotors/Buick-401-425-Nailhead-dual-quad-on-Edelbrock-intake_W0QQcmdZViewItemQQcategoryZ34198QQitemZ4571 921499QQrdZ1)

I bet that goes for over 1K when it is said and done. I have seen that manifold alone go for over $600. Northwest Speed is reported to be starting production of a manifold similar to the B262. That may be the way to go if you want similar peformance at a reasonable cost!