The Clevelands are stronger motors, with 4 bolt mains. Here is a list of basic differences between the two. Basically, the 4 venturi Cleveland motor was the 'hot' 351 in the muscle car years. That's why its 'better'.
http://www.vintage-mustang.com/topic...cleveland.html
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1997 Mustang GT "The Freak" - 13.80 @ 101.70, 2.07 60'
1995 Honda VFR750 - not much @ really fast (actual data pending.)
1964.5 Mustang 289
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