<VV> Octane for 140

[David V. Clamp]

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I would expect a 140 to do well on 89 octane mid-grade. Is this so ? Summer,
east coast sea level driving. Any ignition 

tweaks required ? Brands to get/avoid ? Additives ?

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Padgett, 
 
I believe 140's (also 110's and turbos) require premium fuel (91+ octane).
The higher the better. Even with 93 octane, I had to retard my timing 2
degrees. In the summer, 4 degrees is better if I run the AC.

David V Clamp 
Member: Corsa 
              Heart of Georgia Corvairs - Newsletter Editor, VP
              Nader's Raiders 

1966 Corsa convertible 140 +0.030/4spd 3.55 posi w/ AC 
 <mailto:66corsa at cox.net> mailto:66corsa at cox.net