Hello to everybody, Im very confused about the features of some spark plugs.
I have just moved from stage 2 to stage 3 on my 3door cossy, and Im not really sure about the sparks plugs I have to use to get the best performance of the engine.
I had fitted AGPR12 PP8, but now due to the extra fuel and my driving style ( I dont drive to hard ) one or other spark plug is overfueled and the engine suddenly runs on three cylindres.
I need to change the spark plugs but I dont know which one I have to fit.
I have doubts about:
AGPR 902P
AGPS 071C
DENSO IK31

Some advice please and explanation about the features of each one??