Originally Posted by
jdmeg6hatchy
The throttle body is said to work fine with the manifold.
What kind of tuning needs to be done? why would it be running rich, I would have thought lean...
bigger does not always mean better, this cannot be more true when talking about tb's. the stock one isnt much of a restriction until you start making big numbers.
and if you didnt portmatch the manifold to the tb you're creating a big bottleneck. the opening on the s2 manifold is 65mm i believe.