13 ported heads

[california]

What do you guys think about precision porting ported heads vs the modern muscle performance????

What are the difference between both as ive being hearing precision do some good work as they even ported some guys heads from the show street outlaws shane lesters from mississippi???

 

[Hemi450hp]

I can count the number of truck guys with ported heads on 2 hands, and all but 1 installed them at the same time as their cam.,,this makes it tough to see what they gained from the heads themselves. I honestly dont feel you gain enough from ported heads to justify the cost unless you are installing them with the cam to avoid the added labor of having to install the new valvesprings yourself.