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Super Moderator
Join Date: Feb 2000
Location: Naperville, IL USA
Posts: 14,983
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I've got a 3.0L running 10.5:1 with twin plug and have been racing it with our Midwestern 93 octane fro 5 years. I do run less total advance because of the twin plugging. If memory serves me it's 29 degrees at 3000 RPM and increases to 32 at 7500RPM.
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Chris
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1996 993 RS Replica
2023 KTM 890 Adventure R
1971 Norton 750 Commando
Alcon Brake Kits
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