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There was another thread on this topic initiated by me awhile back. Similar advice. I found on my 69 Spica that it pinged going up hills after two tankfuls of Mid-grade 91. I'm now back to Premium 93. I never even tried 87. I also put 4 oz per 10 gallons of fuel Marvel Mystery Oil in for the rear fuel and Spica FI pump per Wes. Bruce
PS: I'm also running 8 deg advance over this initial stock setting of 3 deg ATDC. I'm at 5 deg BTDC. No cam or other mods otherwise
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Anfanuts; Ph.A., B.S.A.
Now - '69 1750 Spider Veloce ( pictures)( and more) 10562.1480323 (since '75 for that early mid-life crisis!);
- '88 Bayliner, 305 CI Cvy (for those really hot days!)
Gone - '69 1750 Berlina (wish I still had)
Last edited by Anfanuts; 05-13-2008 at 03:13 PM.
Reason: add timing info
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