My car have a similar setup (B18A, C cam, but only one ZS175 Stromberg carb).
With points, blue bosch coils are good.
With electronic ignition, red bosch coil (with the add of a resistor) are the best.
On plugs, I start with NGK BP6HS, but now, after a engine overhaul, the Autolite 275 suit good (and are cheap and easy available everywere). Of course, plantinum one are the best (and bosch made it).
Due bosch ignition systems have some weakness (as stated by C.Jacobs, Performance Ignition Systems,ISDN-1-55788-306-8)you need also a good set of ignition wires. On US you can adquire wires with 8 mm silicone, metal core with spiral winding, boots vulcanized to the wire), on my case (third world Peru)I use originally a standard-out-of-the-box 7 mm black wires, with loss of energy. Now I use a hand made copper core (like the original ones) with 8 mm plastic coberture, with sealed boots (sealed with gasket sealer). My actual setup work good, but also, I was forced to put a radio shack radio noise filter on the electrical input of the radio (cutting the radio egg fried sound asociated with solid copper wires).
Happy volving.

Joaquin
121 Rojo Amazon
Lima - Peru
http://www.volvoadventures.com/121spec.html