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Misfires 6k rpm f23t

nevekd128

Ready to race!
My f23 gets sporadic misfires above 6k rpm. It’s not valve float as the misfires are very inconsistent. I managed to log the issue and the cobb tuner mentioned my fuel system appears to take a dump at 6k rpm, where should I start looking for issues?

I recently replaced my hpfp about 500 miles ago
New plugs gapped to .026
Fresh 93 gas
R8 coil packs
Recent carbon cleaning and new Intake manifold within 500 miles ago.
I checked and my valve springs aren’t the ones considered weak based on the color bands
 

Gino

Ready to race!
Fuel filter changed recently? LPFP?
 

FriggenT1

Banned
My f23 gets sporadic misfires above 6k rpm. It’s not valve float as the misfires are very inconsistent. I managed to log the issue and the cobb tuner mentioned my fuel system appears to take a dump at 6k rpm, where should I start looking for issues?

I recently replaced my hpfp about 500 miles ago
New plugs gapped to .026
Fresh 93 gas
R8 coil packs
Recent carbon cleaning and new Intake manifold within 500 miles ago.
I checked and my valve springs aren’t the ones considered weak based on the color bands

Which plugs?
 
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