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speed density

  1. 5.0L Tech
    Hey all, I'm completely new to the mustang world as of monday afternoon and have some concerns. I have an 87 notchback that was a 4cyl conversion to a 5.0. My main concern is identifying the motor that was swapped in. It had an "HO" badge plate on the top of the intake manifold but doesn't have...
  2. 5.0L Tech
    A bit of background info. . . 88 mustang lx with speed density. Only mod is CAI. 56k kilometres (believe its a canadian model?). Generally good condition. Here's what's happening. . . Car will run fine when warmed up but from cold it has a bad misfire. I have reset the comp several times...
  3. 5.0L Tech
    OK guys been outta the fox body scene for awhile. Now and just bought a speed density froma guy who says he didnt touch the car but, it's got the wiring harness for maf and all that. It has o2 sensors that aren't. Hooked up and I want to hook. Em up but don't want to fry the ecm not sure if...
  4. Classic Tech
    Ok, so this is supposed to be introductions. Hi!! We have a 1966 fastback Mustang and are in the process of putting a 5.0 in it out of an '89. We have bought what we thought was necessary to swap it to speed density, and have bought a new wiring harness, custom made to remove unnecessary...
  5. 5.0L Tech
    I have a 1987 speed density car that I'm going to change to mass air. I have the computer and the meter calibrated for stock injectors. I picked up a wire harness from a 1994 mass air car and was wondering how I would go about merging or replacing this harness? Is it even possible, or did I just...
  6. 5.0L Tech
    ive got an 87 gt its efi 5.0 and i dont know how to tell if my car still has speed density or if its got MAF.
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