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bump last post,had to go down to .023" on NGK BKR7E to prevent blowout at high rpm.this all started when i swapped generic 2871r/550cc/z32 maf/walbro pump.before this i was running stock t25 and stock gap no issues so its not a engine compressiom problem.
im at 15 psi 2871r on 91 octane,im seeing afr around 11.0 - 11.3.
im running 39 psi fuel pressure so i can lean the mix down do you guys think this would allow me to open the gap some more?
also tested spark from coils and each coil has no issue jumping a nice big gap making a crisp "snap" sound nice looking spark but i only did this at idle,ill try revving it up to see if somthing changes.
what else could it be causing me to need such a tight gap?
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