Thread: changing intake
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Old 11-20-2007, 03:53 AM
  #5  
cepx111
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RACING JUNKIE
 
Join Date: May 2006
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If you still have the factory dist in, it will need to be changed to a pre EEC IV or duraspark or some aftermarket fully contained electronic dist like a mallory unilite or msd pro blillet.
The ford EEC IV processor on your 91 will be all out of wack and will have your timing and dwell so messed up it might not even run.
Without the inputs from the array of sensors that came off the factory EFI intake intake and so fourth the processor will be in a "limp mode".
Goodluck, Charles
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