Autolite 4100 intake manifold

I have an original 1966 cast iron intake that I have removed and installed a weiand action plus for the 289. My problem is I want to run this intake if possible , but get the feeling that with only one port on the back of the manifold for the transmission vacuum line I will not have a pcv port. I have looked into using a Boss 302 style carburetor spacer 1/4in with a port. Costly, about $80. The Autolite 4100 may only fit the cast 289 intake properly. Is this correct. I may just have to put the cast iron intake back on.



Greg