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**70CHEVYBB** · 03-14-2012, 01:39 PM

Have you checked your mileage with the big block. Is it a 454?

03-14-2012, 01:39 PM	#64
70CHEVYBB Senior Member Join Date: Feb 2012 Location: chillicothe, illinois Posts: 688	Re: '72 c-20 rat build Have you checked your mileage with the big block. Is it a 454?