PT Lifters and Rockers

[eclipsers-t]

Can anyone tell me why the PT rockers and lifters are a better buy than stock? I have seen that Howell Automotive uses them in their heads, but I was wondering why that is. If anyone can add some incite I would appreciate it. Thanks

 

[Blitzeclips]

http://www.howellautomotive.com/index.asp?PageAction=VIEWPROD&ProdID=230

I'm pretty sure the lifters are stronger as well. I've both of them in my head and haven't had problems yet. When the turbo goes in, we'll see how they hold up.