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

**Rich72C10** · 02-09-2021, 09:22 AM

The more I think of it, I didn't go to actual MAX, since I stopped at 2.5k. It is not that the canister is completely trashed/non-operational - it is just does not keep a vacuum when I applied my pump.

As for my cruising speed. 2.5 is about 60-ish, then 70 a bit below 30k if I recall correctly. I really don't see the point trying to cruise to 75~80. 95% of all my driving has been around town - which around here there are lots of 60 MPH roads (non-interstate). To me, it is a lot more fun going the "back way" than get on I35 in my truck.

So it seems time for some more flashy light and perhaps a friend to work the peddle for me

02-09-2021, 09:22 AM	#126
Rich72C10 Mr. Cheyenne Join Date: Jun 2020 Location: Kyle, Texas Posts: 1,644	Re: What kind of gas mileage do you get with your 67-72? The more I think of it, I didn't go to actual MAX, since I stopped at 2.5k. It is not that the canister is completely trashed/non-operational - it is just does not keep a vacuum when I applied my pump. As for my cruising speed. 2.5 is about 60-ish, then 70 a bit below 30k if I recall correctly. I really don't see the point trying to cruise to 75~80. 95% of all my driving has been around town - which around here there are lots of 60 MPH roads (non-interstate). To me, it is a lot more fun going the "back way" than get on I35 in my truck. So it seems time for some more flashy light and perhaps a friend to work the peddle for me __________________ Richard *'72 Chevy C10 Cheyenne Super WHT/MED BRONZE/WHT SBC 350 \| TH350 \| LWB \| AC \| Buddy Seats Upgrades:** Tilt \| Front Sway Bar \| Radio \| Sliding Window \| Bed Spare w/Lock Bed Rails \| Full LEDs \| Courtesy Lights \| Tachometer \| Glovebox Lock & Light \| Head Light Relays \| *Upgraded Fully Super Trim