Originally Posted by RallyBob
But you have to watch out for the loss of airflow that accompanies this. If your cam is .500" lift, and you sink the seats .050"...the engine only *see's* .450" lift...even less if you take into consideration the valve lash.
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this will happen with my 50mm valve head,
the inlets are so recessed I'm afraid I will lose the benefit of the bigger valve...
Hiro