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Originally Posted by GM72K10
Here's my 2 cents. My 72 K10 has a stock 89 350, HEI, dual exhaust but no headers, rebuilt original 72 quadrajet, stock suspension, auto trans, 3:08 rears. LT235 15 radials. Gets about 12 or 13 MPG just running around. Now compared to my work truck, the 04 K3500, which only gets 9 MPG (if I'm lucky), that's great!
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That's really good mileage!! I wonder if your late model engine has anything to do with it and especially since you are using the stock Q-Jet Carb.?
Thanks for your input.
K.