Dave, I don't know about the Bosch spark plugs (a great brand!), but I put
some Splitfire Triple Platinum spark plugs into my '56's 68 327 about 3 years
ago and they work really fine. I was with a mechanic when I did so and we
noticed the difference right away (in the way the engine was breathing) ! I
got another Splitfire TP set (different # of course) into an Austin Mini and
did about 50.000 milles before changing them (I don't even know if I needed
to!). Hope this helps. JP
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