I am looking at up grading my exhaust on my Versa Laser 6.60
If I use this blower
http://www.pennstateind.com/store/DC250SEMB.html
Which has 6" port on the blowing end.
If Immediately I narrowed that down to 4"
what will that do to the CFM, and Static Pressure.
The other unit i was looking at was
http://www.pennstateind.com/store/DC3XX.html
but I do have to have 2 4" hoses going into the suction end of the blower
Thanks Mike