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I have a 67' Delta 88 convertible, 425ci with 'c' heads (10.5 to 1 comp). I run the hi-octane along with a lead additive. My latest mpg is 9.5 (all around mpg) and I don't get any 'octane ping'. I'm no rocket scientist (or engineer) but something is better than nothing.
My take on the gas prices? I like the ride, so I pay the price (currently $3.20 gl here in Spokane).
Just a few thoughts.
FRDMFTR
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