The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - What kind of gas mileage do you get with your 67-72?

Chris_oz · 10-01-2018, 06:18 PM

stock 350, 4 speed, 4.57 diff on 8.75r16.5 tyres, if I sit on or under 60, its 15mpg.
any faster and it drops to 12mpg.
Bone stock in every way, 72k on clock, stock Qjet.

10-01-2018, 06:18 PM	#10
Chris_oz Registered User Join Date: Sep 2018 Location: Newcastle, New South Wales, Australia Posts: 139	Re: What kind of gas mileage do you get with your 67-72? stock 350, 4 speed, 4.57 diff on 8.75r16.5 tyres, if I sit on or under 60, its 15mpg. any faster and it drops to 12mpg. Bone stock in every way, 72k on clock, stock Qjet.