[Mgb-v8] Spark Plugs for Rover V8

[Barrie Robinson]

I can only find reference in the Archives to the following spark 
plugs for the Rover V8.

Champion  RJ12YC
Champion RN12YC
Champion RN11YC

So which is best for my 3.5L Rover V8 with Delco-Petronix, 
Flamethrower 40001coil, 10:1 pistons and mild cam ?  No one seems to 
mention anything other than Champion !!!

Incidentally I put the question to RPi in the UK (who supplied my 
engine) but they can only talk about the ignition parts they 
sell.  Seems as if they have given up being Rover V8 experts and 
become a Rover V8 sales place - pity!

Regards
Barrie

Barrie Robinson
(705) 721-9060
http://www.britishv8.org/MG/BarrieRobinson.htm
http://www.britcot.com