i used the throittle linkage from the stock hitachi carb
Carb Linkage pici bought a webber adaptor plate that fits the a-series engines from my local auto parts store and it said a series datsun it was a redline manifold.
i found the easiest way to get the fuel lines to do the right thing is to get an aftermarket fuel filter with the changeable ends say one of the anodised ones or glass ones so you can choose the line size for each end and have the in for fuel 1/4 and the out 5/16 and you will need a length of 5/16 hose aswell and maybe a couple fuel line clamps for the bigger hose. i'm yet to run mine cos i'm missing the idle mixture screw but as soon as i get mine it should be fine. and you shouldn't need any more than $150- 180, that includes rebuild kit carb from wreckers and filter hose and clamps. and also go to
webber base settingshope this helps