...what Advantages...

[Karl M]

WHAT ADVANTAGE DOES HAVING YOUR HEAD PORTED =AND POLISHED DO AND WHAT SOET OF PRICE SHOULD I PAY:thumb:

[L14MNP]

Better airflow, should be matched to your manifolds though for best results

http://img.yahoo.co.jp/images/help/terms/000/221-1.gif

[draper]

ive been quoted ?550 + VAT for a fast road/race headwork by CTM, they enlarge the inlet ports by 2mm, i forget now how much they enlarge the zorst, think it was 1mm plus they do some other stuff i didnt really understand. apparently this 1 is the nest stage down from a full competition head

[Jack]

On its own, not a lot. Best matched to good intake and exhaust components, or ideally forced induction :D

[Adam]

As above, your not going to see decent gains if its a standard engine?

Really need increases airflow in as well to get the best out of it, due to better cam(s) etc.

[Karl M]

I want to modify my redtop for when it goes in not realy got to much to spend ?150-?200 what would be best to do ???

[Adam]

Theres not really much you can do for ?150 tbh.

Maybe a decent exhaust system.

[draper]

and power cap