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EnfuegoZ28 · 10-21-2010, 10:53 PM

My 91 Z28 with a 350 TPI got 27 mpg driving like an idiot on the highway and it was stock. So power and economy is very possible. I've heard of 30 mpg highway out of LS1/T56 4th gens.

10-21-2010, 10:53 PM	#11
EnfuegoZ28 Drives: 2000 GMC Sonoma Join Date: Mar 2009 Location: ATL, GA Posts: 75	My 91 Z28 with a 350 TPI got 27 mpg driving like an idiot on the highway and it was stock. So power and economy is very possible. I've heard of 30 mpg highway out of LS1/T56 4th gens.