5.0 mustang ECU for 351w stroker?

[Jack21]

Don't think there's any debate that a properly dialed in (and that's a big caveat) EFI will give you better cold starting, better part throttle drivability, and better fuel economy than a carburetor. But at what cost? And hassle?

Taking the complete late Mustang 5.0 engine and EFI, and bolting it into a Cobra, (or a '66 Mustang, or a whatever) is not that big of a deal. But starting from scratch with a non-stock application such as a 408W stroker in a Cobra. The cost goes up exponentially, with no guarantee of results.

Put a 750 Holley or Demon, Performer RPM or Stealth, and you're not far from optimum right out of the box at 1/5 the cost of an EFI. And it clears your hood with (not much) room to spare. The aftermarket just isn't there yet with bolt on EFI systems. At least not for Ford motors, and less so for non-OEM displacement stroker Windsors.

If anyone is going to get a handle on this, Ford Motorsport will likely be the first to endorse it. Call their tech support line for what their latest thinking and recommendations are for EFI on their 393W crate motor and other non stock displacements. They won't be far off for a 408W.

If any of you have more up to date information, please share. Inquisitive minds would like to know.