Quote:
Originally posted by PKRWUD
I just checked two of my spark plug catalogs, and both have two listings for 1993 5.0 EFI Mustangs. The ONLY difference in the listing is the VIN letter for the engine, but they call for two different plugs.
Take care,
-Chris
|
Whats the difference between the two plugs? Heat range? An entirely different style?
andy