(but I did discover that on a 1985 V240 DL with a B230A engine (Pierburg carb & Bosch distributor) the original Bosch rotor arm had a spring loaded cut out, so when the arm was spinning past a certain speed, it would short out the rotor and act as a rev limiter. Aftermarket rotor arms were just plain conventional items that did not do this. Possibly a useless fact that has no relation to the question anyway! )
Maybe... the limiter is in the Renix ignition unit...
It seems some cars have them, some don't - however assuming the B19 is like the B200 the rev limiter will be at 6250rpm so you may have just missed it!
Are you sure the year/engine is correct. 85 360s where B200s I thought. Anyway a B19E will have a limiter in the distributor arm I think. From memory it has a large oval shaped one with a weight in it that breaks the circuit at the peak revs, of course it is also likely it has been replaced with a later non-limiting standard arm.