Can someone give me some info on what the advantaje of this. What is actually done. And if there are any specs to follow as guideline?

Thanks

 

Is there something specific you're looking to bore and/or polish? Cylinders, ports, throttle body...

 

cylinder head to be specific

 

That would actually be referred to as a PORT and POLISH. Do a search on the web and I'm sure you'll find more information than you could go through in a lifetime. ZFP offers ported and polished heads if I am not mistaken.

 

I am guessing you mean ZPI.

Do a google search and you should be able to find everything you want to know.

 

Yep...indeed I do. ZFP is a program that we've got a work and for some reason always sticks in my head.