318 with blow by

im confused on baffel? what is? is that an air breather?
i wish i understood motors better.
if i have bad rings and and maybe whatever else can go bad during that, how much engine power does one usually loose, or can you not notice the change in power, and are there any other signs of burnt or bad rings, and maybe more...that will help me figure this out easier also... but crossing fingers ill get the comp test done tomorrow..
and this question might make you guys laugh.. but im not afraid to get laughed at soo.. is there any way for oil to get into the headers for some odd reason im getting smoke off the other side motor i dont see the oil on the headers but its getting smoked off?? i know my covers leak a tiny tiny bit.. but i just dont ever see oil where the smoke is coming off of just curious if it can be an internal thing?

If your not getting vaccum on the pcv valve, pull it off, see if your getting vaccum at the hose, if not pull it off and see if your getting vaccum at the carb port. If your still not getting vaccum, the port in the carb is gummed up, pull the carb off and clean the guck out.