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72gmcshorty · 12-27-2003, 10:06 PM

I was just wondering what causes a motor to have low gas mileage? I know the carb plays a large role but if you have a new 350, a old tired 350, and a high performance 350 (all with the same carb on it) what would cause the difference in gas mileage between them?

12-27-2003, 10:06 PM	#1
72gmcshorty Registered User Join Date: Jul 2001 Location: North Delta, British Columbia Posts: 1,344	What cause low gas mileage? I was just wondering what causes a motor to have low gas mileage? I know the carb plays a large role but if you have a new 350, a old tired 350, and a high performance 350 (all with the same carb on it) what would cause the difference in gas mileage between them? __________________ 1992 Gmc 2wd 1972 Chevy Blazer 2wd