[Allan Kelsey]

Despite all the mixed reviews over the power advantages (or lack thereof) of extrude honing the intake manifold in the 3.2 motor, in the interests of wot air delivery I elected to have it done.
Im trying to work my way toward 300 normally aspirated crank horsepower and believe this will aid in getting me there. I dont have the time/patience or budget to dyno the finished motor with and then without the honed manifold to finally put all the speculations to rest, but I can see how that would provide conclusive evidence of its effectiveness at different rpms...

Here are some before and after shots of the inside of the manifold.