I had fouled my plugs a few weeks back, the dealer installed BKR7E's but the Tech gapped them at 0.031, my car seems to work crappy since i had them installed. Could this cold of a plug be causing hesitation and loss of power??

I have ZEX plugs coming on monday anyway, but just was curious, my last BKR7e's were gapped at 0.039 with stage 2 and 2.8"

Help please

 

that gap is too small IMO on the ones the tech installed.. 40 gap should be fine with a 2.8 pulley, heat range should be ok at 7

 

I've run the BKR7E for a year or more and they work great. Gapped at .035"