05 450 spitting fire

05 yzf 450 spitting fire!!! I recently bought a 05 450 and have been doing a few upgrades such as plastics,graphics,etc. I put a full white bros carbon exhaust system on it and now when you give it gas it shoots flames out the pipe. I am pretty sure it is a jetting issue but any advice on which size to go to assuming the one in the carb is stock? Thanks in advance. :worthy:

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