[TR] Iridium tip spark plugs

[John Mitchell]

    A friend gave me a set of NGK iridium spark plugs BPR6EIX  to try.  
Inside the box there was a warning about trying to gap them can cause 
the electrode to break so I put them in as is with the gap measured as 
.030".  The car runs very poorly with lots of hesitation coming off 
idle.  Would this be because of the gap, or is copper a better material 
for non high energy ignition systems and the iridium just makes them 
last longer?  I was going to try gapping them, but I think I'll just put 
the old NGK's back in.  John Mitchell  76 TR6