2010 Camaro Long tube headers slow O2's

[ecasar]

I am working on a 2010 Camaro L99 6.2L with long tube headers. Is there a way to speed up the low and mid range toggling of the 02 sensors? When I run the car in open loop the tune is very close to 14.6 everywhere, when the short term closed loop is turned on the O2's toggle back and forth slowly +- 10-15% It looks like the O2's over compensate and swing too far and slow. 3000 RPM they operate close to normal. On fords there is a O2 process delay table to compensate for the long header tube length...is there such a value or table for the GM"s?

Thanks.

[IDRIVEAG8GT]

I'm going to just throw this out there, but this is not my area of expertise. You may want to set the O2 Max Rich/Lean Voltages to 500 to speed up their oscillation. You can TRY it. I'm not too sure that this will work though.