v12 400hp+
Veteran Member
Joined: Jul 2010
Posts: 7,362
Likes: 1,241
From: Austin tx and Daytona FL.
if you are very lucky you may get 1% more efficincy,(lucky), possibly keep carbon debris down after 100K driving!
spend time in the ports and pocket relief all the while as straight as possible, and increase valve diameters, to shape the above/below seats!
ron
spend time in the ports and pocket relief all the while as straight as possible, and increase valve diameters, to shape the above/below seats!
ron
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