Because their are 2 versions of the 5.0. Ford bult a High Output version of the base 302 called the 302 HO. That engine uses the 351 firing order. After some experimentation it was determined the engine ran better using that firing order instead of the standard 302 firing order.
50 percent
there are 50 states..... what do mean by orders ,please be more specific
there are 50 states..... what do mean by orders ,please be more specific
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