2001 f250 super duty 4×4 v10
installed a complete 2003 v10 (all wires,alt,ac,p.s. and so on) in my 2001, now my tach reads around 2 times too fast.
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installed a complete 2003 v10 (all wires,alt,ac,p.s. and so on) in my 2001, now my tach reads around 2 times too fast.