930-10 row '83 SC question
 

I was looking at an rpm/speed thread and got to wondering about my 930-10 row in my '83 US spec car.
I've the 930-16 US spec tach with tach initiated fuel pump shut off that indicates a 6300 redline start.
The books I've looked at indicate a 300 rpm higher shut off (rotor type) for the '83 row.
What is the redline on a Euro spec 930-10 tach (6600)?
I'd have to disable the tach generated shut off and use a programmable box limiter (MSD) to gain that rpm difference.
Anyone with a Euro 930-10 tach?