What chassis are you installing it in? I'm not sure about the V8 flywheels, but the V6 units are 143-tooth, same as old-skool 11" units. If you want to stay with OEM flywheels, you MAY be able to swap the tone ring from the V8 to the V6 - note that I haven't tried this, just speculating.

I think there are specific aftermarket or MP flywheels out there, but I'm not sure how many are set up for the crank sensor. I'm sure some other folks here will know.

Clair