Not Ranked
I have 11.5 CR and alluminum heads .Alluminum heads let you get away with at least .5 CR higher. I figure 10.5 with iron heads or 11 with alluminum heads I could live with 91 octane pump gas. I'm tickeled thatI just found the local SafeWay has 93 octane. Racing gas costs allmost $6 per gal $2.45 is a better deal.
8.3, isn't that ready for a supercharger?
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Mike H
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