Oh and webber side-drafts maybe be "shorter" than the SU's and fit better under the hood. Also finding the manifold for the SU's is not easy in the US. They were not standard on any foimported datsuns, so you'll need to look overseas (Aus primarily). You can get a weber setup fairly cheaply for the A15 though I don't really know much about it personally. I suggest you go to the Yahoo! Groups Datsun 210 forum for help in that area, if you don't find it here. There are several regulars there who swear by the weber setup as far as cost and ease of use goes.