Quote:
Originally Posted by Ezio
keeping in mind you are building for high RPM. which means you are putting parts in there that can handle it
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+1
Stock valve springs are a weak link. Call Dinan, RD Sport, or Auto Talent for better valve springs. Stock springs have rather weak seat pressure, which means you might hit valve float sooner than you want. I think the factory valve springs were tested to 10000, but with the numbers we tested for seat pressure, I wouldn't want to run them any higher than stock.