[s-cars] Tachometer after 3.6 > 4.2 V8 conversion

[Rick Rolston]

After installing a 1993 4.2 in my 1990 V8 the tachometer does not work. I
have used the 4.2 engine electronics. Anybody have any idea why my 1990 tach
will not work? I am sending this to both lists in the hope that a wider
audience might have some suggestions.

Thanks

Rick