[rdorman]

If you are not sure you could always go to the local autoparts store and get an el' cheapo valve, short length of hose to the base of the carb and just let it flap in the breeze while you see what it does to you idle/power/drivability. Lots cheaper and very easy compared to going to the speed shop for all new breathers, braided shiny and pretty stuff. Seems to me the one at the parts stores are only a couple of bucks.

Just a thought!

Rick