02-07-2004, 10:22 AM
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CC Member
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Join Date: Aug 1999
Cobra Make, Engine:
Posts: 2,888
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Not Ranked
The Nascar Cup cars use 110 octane leaded gas. That is the same stuff that I use.
For a while the Craftsman truck series were running 9-1 motors making less hp but able to run pump gas.
Everybody that I talk to running 10.5 and higher and doing track time is running race gas.
I know their are lots of guys running 10.5 with pump gas and thay say their engine runs great. THEY AIN"T WORKING THEIR ENGINES. 
Cranky 
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