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I checked all my plugs the other day due to some mid throttle surging i would get a lot daily driving. The first 3 from the front where oversized probably about .030-.033 the last one was dead on .028. So i adjusted the gap to .028 on all.

Throttle response seems better. Surging seems to be gone. But oddly it feels maybe lil less powerful normal driving (maybe just butt dyno perception) before gapping i have been consistently -1.00 on my OAR using torque app. But immediately after gaping the plugs to .028 my OAR dropped to -.97 (The start up after the gapping so same tank of gas of 93) while its not a big drop it still confuses me it dropped at all gapping plugs to optimal gap size. I did a few pulls tonight and WOT im still getting consistent 0-60 as before so that hasn't been affected. Any ideas why the optimal gap would drop oar? Should i gap them back as they were for a higher oar? Im new to the ecoboost turbo scene so still learning. Thanks
 
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