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this may not be the case... too bad you can REALLY tune the car to see what the capacity of the pump is. Timing is really important in the tuning mix... so even timing that is a little off can lean you out and possibly cause that knock.

Have you thought about finding a Cobb dealer to dial you in? Just changing internals on the pump will not help if your car is not asking for the right amounts of fuel.

I have a ton more requested from my stock pump with no issues... but my timing is tuned specifically for my mods. I would bet you are just hitting a boost limiter, then the car is purposely pulling back fuel.. at least in the one log.

Last request... Can you borrow a dashhawk so the display is easier to read?

It is tough as balls to get this car to act properly once you have some mods on.
 
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