im just wondering what king of gas milage i should be getting with a 350 pretty much stock and a holley 600 carb and t-5 just aasking because my car seems really bad on gas could it be because its out of tune or are all holleys this way? thanks guys

 

properly tuned on a mild to stock motor you should get close to 18mpg

 

mine really needs tuned then im getting like 8 to 10 mpg