I need to know if a Holley 350 CFM Keith Dorton Series Carburetor will work in my 1964 1/2 V6 2.8 liter Mustang. The engine size is 170. I also have the choice to get a 500 CFM carburetor from the same series. Which would you prefer?
A 170 early Ford six is not a V6 - but rather is a straight (in line) six with a one barrel carburetor, generally the Autolite 1100 which came in three different sizes for the 170, the 200 and the 250.
If you want to "build" it a little, I would suggest you move up to the 200 for the 7 mains. Put a 250 head on it (better flow) and go to Clifford for some "go fast" parts/header: http://www.cliffordperformance.net/
If you're really serious, after you put in the 200, import a head from Australia that does not have the built in intake manifold and pick a free flowing intake that suits your needs.
You can't put in a 250 I6, it's too tall.
Moving to a V8 presents a whole lot more changes, I wouldn't recommend it.
no v6 "s in early mustangs , Straight 6 170 for 64 1/2 through early 65. then went to a Straight 6 200 . 6 main bearing as opposed to 4 on the 170 cid engine . recommend keeping it as stock as you can. its more appealing if you sell it in the future