RS,
Coupes are one exception where tastefully changing something to a little sportier is widely accepted, appreciated, and worth something. Now just to be fair- that generally doesn't apply to CSLs, Aplinas, etc.
A 733 motor could be Euro, high compression; maybe not. If I was going to stick triples on it, I'd be sure about how to go about it or ask a lot of questions before over carbing something even if they were sitting on my garage shelf for 20 years and free. What everyone forgets is that not so long ago a used BMW motor might have beeen $3000 when the factory was asking $5k.
Steve has something more to say.. let's hear it. Here we're guys helping other guys.
Maybe we all learn a little something.