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Cool. I wondered if these were similar to the 429 Boss heads? How would you compare the Boss heads to a very good set of normal wedge type heads? and how many CID are you running.
oops
I see you said Kaase Boss 9. I believe they are quite superior to the original 429 Boss heads.
Last edited by olddog; 03-19-2017 at 10:34 AM..
Reason: oops
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