Converter or Fuel System

[Tugger50H]

Obviously i'll probably end up doing both but can only swing one at the moment. What would have the greatest impact on my ET?

Current setup Paxton 3.6 Pulley 12lbs of boost.

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[16MustangVet]

converter would be better gains but fuel more room to grow especially if you plan on e85.

 

[Dominant1]

Circle d converter!

 

[Slamdcoop0428]

Here is my car with paxton and 4c converter. I vote converter!

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