You will want new cams to make electricity up there. And you'll need new valve springs to operate in excess of 9000rpm too. This really is now considered to become perfect for higher-revving engines with significant certain electricity outputs, even so most superior-overall performance racing engines nevertheless employ wide valve https://shanerxvhp.theblogfairy.com/32428262/the-2-minute-rule-for-toyota-4a-ge