Scott, do you currently have anything? Like an exiting 1600 DP? In otherwords, do you have exisiting modern (cooling sheet metal) tin, distributor and carburators and only need a longblock? You can go to www.thesamba.com and look at the classifieds. Also, watch ebay. But buyer beware! If you want to go new, you can look to John @ Aircooled and Jake Raby. Maybe you want to order a long block and buy a set of 40 or 44 Dellorto carbs off ebay or thesamba. Just a handful of ideas.