  In this proceedings we summarize our recent letter (Jarvis & McLure 2002)
where we suggested that by correcting for the inevitable effects of
inclination, the black-hole masses of flat-spectrum quasars (FSQ) with
intrinsically powerful radio jets are confined, virtually exclusively, to M_BH
>10^{8} Msolar. After considering realistic Doppler boosting factors, many of
the FSQ would be more accurately classified as radio-intermediate or radio-quie
t quasars. This range in radio luminosity suggests that the FSQ are fully
consistent with an upper boundary on radio power of the form L_5GHz
proportional to M_BH^2.5.
