I'm getting ready to order some pulley's and want to get some feedback as to torque differences between a 2.93/4lb and a 2.93/6lb. It's an unported blower for now. I'm just curious if the results would be worth the increased lower size. I know either setup is going to get decent hp numbers, but what about torque? And of course the often-debated overspinning of the blower.