What never heard of the 180B SSS E variant with 125PS instead of 115 PS,THe Fuel Injected Nissan Stanza Coupe I once owned was ex Howard Marsden and George Fury and ran one of those setups plus an L20 B ex Factory.

180B SSS E used a A 87 spec head with the extra cutout up top for the injectors plus extra studs for the inlet manifold but all doable on a Carby Head as a Conversion.

I Modified a 219 Head to suit and on top of a Japanese L20 B Block fitted with FIA Pistons it made a real nice road engine with stump pulling torque.

A good 610 SSS with the injected engine would be real nice and ultra rare as it seems I am one of the few aware of the Model ever existing.

Here is a Link about someone doing basically what I did but 20 years later,with the ever so rare L18 EGI system,Hope he knew about adapting an FJ 20 TB to it the L18 one is quite small.
http://www.z-car.com/blog/cars/adding-efi-to-the-datsun-l20b