I have the 2 ports at the front of the carb. The upper one I was going to use as the vacuum advance. The problem with using the lower port for the pcv is, the nipple is much smaller then the nipple on the breather I got from tom Lowe. Looks like the carb nipple is 3/16 and the breather nipple is more like 5/16. It is my understanding that you really don''t want any leakage around these vacuum ports. I am just not sure as to ho to go about using this port. hopefully tom Lowe will chime in on my stupidity.
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