All mods are in my sig pretty much. Basically its a H/C car, full exhaust and everything already. It has a 58mm TB on it right now, When I get my port-matched intake on how much HP will it free up? 10-25 rhwp I was thinking??
The heads flow very well, 284/225 @ .6", I want them to flow to their potential

 

Do it, even if it's only worth 10rwhp.
Match the manifold ports to the head ports.

 

Thx james will do, any more opinions? Anyone documented these gain? I have the port matched intake ready to be thrown on I just gotta get to the shop Thanks!

 

anyone?