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Re: Head Work

>> Agree here.  Large valves on a turbo motor that are cut correctly, should not
>> cost any low end performance vs the stock setup.....  Few people just add
>> valves, the fact is a proper head modification will give the whole rpm range
>> an increase over stock......
>Big valves=lower redline. There is a lot of mass to move in a big valves. 
>Four smaller valves are not only lighter, but breathe better than bib valves.

Only true if the larger mass of the valves is the limiting factor to MAX RPM
-- in most cases it is not, at least with most streetable engines.