<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GamblerSam &raquo;</TD></TR><TR><TD CLASS="quote">Next time out I'll run it without the cowel and see. Thanks for the help !!!</TD></TR></TABLE>

That's a good idea! Just be very careful when taking off, or when coming off plane to try and avoid "backwash" into the cowling (which could easily quelch the "whistle".... or any other noises the engine makes, for that matter).