I drive a 1200GX datsun.
They came out with the Hitachi flaptop Su's.
Go on the internet and search for information on tuning these carbs.
They are great.
Tune them right and then you can just keep them clean on the outside.
I haven't touched mine in a long time.
Just make sure that everything is in good condition before fitting them.

reuby_tuesday
I drive a volkswagen aswell as my datsun.
You cannot break a volkswagen.
Many have tried here where I live to break a 1.8 litre 8 valve volkswagen engine and also the 2litre 8 valve engine.
These are the best volkswagen has ever build.
There is only two cars I will drive in my live and that is Nissan and Volkswagen.