You should be able to run the Sunoco 94.  It may ping here and there though.  I would try it first.  you could always retard the timing a tad to make up for it.  Worst case scenario, just mix some cam 2 with it.  I've been running the Sunoco 94 in my 454 which has about 11:1 compression with no problems.  The 93 octane usually performs fairly well, but the engine only likes Sunoco and Texaco Fuels, everything else makes it ping.
 
Tom

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