Bell-housing alignment help

The max I've sen is ROBBMC's 21 degree deals. You need to move it down towards 6 by .047... So I would suggest you get the .021 and re-measure. If it had no issues before (and I can't imagine it didn't...lol) you will be "better", even if it's not totally in spec. The issues I've sen usually revolve around poorer shifting and vibrations.