Thread: P68 efficiency mods/tooling
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Old 05-15-2008, 04:57 PM   #8 (permalink)
c6quad
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Quote:
Originally Posted by Surestick View Post
What Palmer's does is bore out the top hole only, block the side holes and fill the bottom hole with a set-screw to keep the top hole aligned.
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the top hole isn't the only thing they bore. the inside bore of the exhaust valve body itself is bored to .266".
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Quote:
Originally Posted by chlsnk View Post
"Go ahead and strip and cut that puppy down because all you are doing is making mine worth more"
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