I would like to know every thing about street port. How much hp do you get ? Cost ? Does it passe the emission laws ? Which specialist do you suggest to do it ? Do you suggest this mod ?

Thanks

 

With all street port in your signature that I saw, no one can answer this.

 

street port makes the engine flow more air. so with the same mods you will have about 10% more power. street porting is generally done while an engine is apart. there are many engine builders use the search button for more info