[s-cars] Re. Spark plug

[Cody Forbes]

Thanks for all of the input guys. My reason for asking is that I'm having 
misfire issues on my COP 10v car. I'd tried everything else (adjusting 
dwell, fueling changes, new coils, etc etc etc) until decreasing spark plug 
gap on the current WR7DC+ coppers helped but didn't solve it, so I was 
looking to change plugs. The only difference I can find between a 10v spec 
plug and 20v plug as far as installation requirements is that the 20v plugs 
use the smaller hex size, but same thread depth and everything else so I was 
going to try the F5DPOR. After the input here I decided to check out NGK's 
listings on their website and they showed their Laser Platinum as the only 
thing they have that fits, even though I found other places that list an NGK 
Iridium as a direct fit. I just ordered a set of NGK PFR6Q Laser Platinums. 
Cross your fingers for me please as I have been fighting this misfire for 3+ 
months now.

-Cody