And thank you monteman, you have definately got me going in the right direction

 

If your gunna pull the valve covers off to get to the rockers you might as well check your valves, valve lash and the whole nine yards, invest and look online or in oreillys or autozone or whatever auto parts store you have close by and get a haynes manual for it, it should show you the layout or identify all vacuum lines or atleast help you out where it runs to.

 

i know if there is missing or not aparent vacumelines removed from the car i know it will burn or act wiered. once you fix bunch of the miniscule problems you will be happy. i know the 305 chevy has is a good engine and can take abuse but i would check on every thing on is every thing lines up from all the hoses to changing all the oils from the engine to the rear end. it should be a good running car i am sorry to read about some issues that you have i hope you will get the things you want to fix fixed.