Ported TB

[ThaUnknownOne]

Can someone explain the purpose of porting the throttle body? The Pros and the cons? If it is worth it if anyone knows a place to go in the Detroit area. Thank you

[91parkave]

Short answer it adds to some throttle response on the LS4 however with the stock intake manifold you will gain nothing. If you were on a LS 1/2/6 /fast 90 or 102 then porting will be worth a gain.