use the toy denso u groove plugs
or ngk's
those are both good plugs
platinums worked fine in my motor
all them multiple prong plugs are a gimmick
they only make ONE spark
they can't possibly work better...
that's physics
current follows the path of least resistance...
i tried split fires after a guy with a celica at the store told me he got better mileage or power
made no difference in my 22re...
cost way more tho
didn't they go out of business???
wut a scam