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**special-K** · 01-31-2022, 11:34 PM

What I always heard was not so much that the GMC V6 guzzled gas, but that they didn't save gas over the V8s. That buying one to save gas was pointless. I never thought that was the point. Their purpose was to produce superior torque. It probably would have helped mileage if they ran a Quadrajet. You can get better mileage out of a SBC with a Q-jet over a 2bbl. Maybe the focus on secondaries was more about higher RPM performance, but running down lower on primaries sips the fuel compared to a 2bbl. I think that a V6 would be content running on Q-Jet primaries. Could be wrong. Certainly taller gears would help the factory set-up

01-31-2022, 11:34 PM	#23
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Re: 1967 GMC camper cruiser What I always heard was not so much that the GMC V6 guzzled gas, but that they didn't save gas over the V8s. That buying one to save gas was pointless. I never thought that was the point. Their purpose was to produce superior torque. It probably would have helped mileage if they ran a Quadrajet. You can get better mileage out of a SBC with a Q-jet over a 2bbl. Maybe the focus on secondaries was more about higher RPM performance, but running down lower on primaries sips the fuel compared to a 2bbl. I think that a V6 would be content running on Q-Jet primaries. Could be wrong. Certainly taller gears would help the factory set-up __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ Last edited by special-K; 02-01-2022 at 08:49 AM.