Most MPG - The 1947 - Present Chevrolet & GMC Truck Message Board Network

davidh · 02-24-2005, 01:07 AM

I'm getting ready to swap out my 292 in for a 305 in my 67 C10. The 305 is out of a 80's camaro that was supposed to have been rebuilt. Which carb would be the best for MPG? I know the theory of 4bbl is that if you just put around in it the primaries are smaller than those on a 2bbl so you should get better mpg. But I've known some farmers who switched out to little 2bbls and claim they getter better mpg. I also have a 80's HO. aluminum intake. I think off a 305. So, I could use this and get a fresh quadrajet. I will plan on using an HEI of course too. I'd love to get 14-16mpg if at all possible. gas is going to be damn high this summer.

02-24-2005, 01:07 AM	#1
davidh Senior Member Join Date: Feb 2004 Location: Ponca city now kingfisher Oklahoma Posts: 1,220	Most MPG I'm getting ready to swap out my 292 in for a 305 in my 67 C10. The 305 is out of a 80's camaro that was supposed to have been rebuilt. Which carb would be the best for MPG? I know the theory of 4bbl is that if you just put around in it the primaries are smaller than those on a 2bbl so you should get better mpg. But I've known some farmers who switched out to little 2bbls and claim they getter better mpg. I also have a 80's HO. aluminum intake. I think off a 305. So, I could use this and get a fresh quadrajet. I will plan on using an HEI of course too. I'd love to get 14-16mpg if at all possible. gas is going to be damn high this summer.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.