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"This puts the valve no where past the deck of the head and certainly has more than generous P to V figures. Obviously this is statement is made being that your timing is set correctly etc etc."-- 1. What does timing have to do with how far out the valves extend (maybe with piston interference, but the deck itself?)2. What about shrouding effects with oversize valves? 3. How much does valve design contribute to airflow (stem neck tapering, backside countour of valve) ?
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