i would get a navigator motor, 4v of course. but if you are wanting to build a 4.6 motor, any mustang, or truck block should do. they designed the block very well. i would get a low milage non p.i. motor just because of the price and extra stuff that you might need for the build.
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13.068 @ 102 with a 1.732 60 ft, 4:30 gears and drag radials, 2.5 inch exaust, x pipe w/ flowmasters, stock motor and trans
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