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1BIGracefan · 9/10/08, 10:48 PM

Duke people run the 410 because thats what USAC mandates in the rulebook. When or if USAC ever changes the 410 rule then away goes the 410. Thats just a guess on my part of course.

9/10/08, 10:48 PM	#2 Re: 410 ci engines???????????
1BIGracefan Senior Member Join Date: Jul 2007 Posts: 1,100	Duke people run the 410 because thats what USAC mandates in the rulebook. When or if USAC ever changes the 410 rule then away goes the 410. Thats just a guess on my part of course.