Re: 305 v8 or 250 I6 for better mpg
Keep the 350 and put a q jet on it maybe an overdrive tranny, fuel injection, new gears. If you go with a 305 youll just have your foot in it farther to get it down the road, I had a 305 in my old malibu and swapped in a 450hp 350 and my milage didn't change much until I swapped out the 2.73 gears for 3.42 thats when my milage suffered. Even the bigger jets in the carb didn't kill it if you kept your foot out of it
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