Porting and polishing head

[Eclipse2121]

I have a seven bolt with a fully built bottom end. I have a ball bearing turbo, intercooler, cams, cam gears, valves. Just an overview of my set up. I have a guy that is willing to port and polish my head for $450. Is this worth it? Will I see major gains because of this? Need a short and to the point answer? Thank you guys

 

[95dsmgsx95]

Just think about it, bigger ports = more air flow, more air flow = more power
Is he going to do your manifold too? If so then i would do it.

 

[Eclipse2121]

He said for an extra $100 he would do my intake manifold. Is it safe to port and polish the manifold? Been reading threads where they say that the intake manifold should be left alone. Thanks for replying.