Outer Limits 4x4 Board

Anybody had much to do with the speed sensor settings on a Marks V8 conversion kit for a Nissan? I rang them about it, the guy i spoke to had no idea.... "just use the landcruiser settings" was his response...... can't really judge yet whether or not it will be the right setting..... it (the motor) seems to run ok, but i would rather get it right before i do too many K's in it.

Thanks In Advance