Engine Swap and Mileage

Mar 27, 2007 2 Replies

I am considering swapping my 302 for a 351W in my manual '84 mustang. I currently have a four barrel carb and I was wondering what kind of mileage I would get with a 351W with either a two or four barrel carb.



14 or 15 my guess - in city

I'm just curious why you're concerned about gas mileage if you're going to a 351W...

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