Vacuum pump with blower?

[novaracer]

Does any one have any pic of a Vacuum pump with a blower (cog)?
What pump would you suggest?
thanks BC

[OUTLAWCUTLASS]

I have a vacuum pump setup with my F3R. The pump is a GZ Motorsports unit, being driven by a Moroso mandrel. Its hard to see, but I attached a pic. The crank pulley gets narrowed to 2-7/8" on my setup, and the drive mandrel was made out of a GZMS vacuum pump pulley. I tried to use the largest mandrel pulley I could...but it wound up being too small. I use the mandrel to drive my vac pump, and my alternator. It works PERFECTLY! The crank pulley diameter is 4", the vacuum pump pulley diameter is 5.5" and finally I use a 2-1/4" alt pulley. All the accessories are being run at the proper speeds. PM me if you want more details, or better pics.