ive got a 74 360 i rebulit the carb on and when i did i fixed a few vacume leaks hear and there couple caps were leakinig, now im haveing some trouble with oil comming from the oil cap and a bit comming from the dipstick tube almost like back presurer any suggestion as to what the problem can be its really pissing me off never really had a problem till i rebulit the carb and replaced the cracked vac caps

 

First off - please slow down and use some punctuation in your replies; it's very hard to understand you. I had to spend about 3 times longer reading your post than I normally would, so making it a little more readable is going to make it easier for people to help you.

The first step is to make sure that the PCV system is routed properly - that means there should be a PCV valve in one valve cover, and a line going from the valve to the carburetor (or spacer plate). This is a manifold vacuum signal and serves to pull blow-by fumes through the PCV system and into the intake stream to be reburned. The other valve cover should have a grommet with a line going to the air cleaner at the breather filter. It is through the breather filter that the PCV system draws in fresh air to displace blow-by fumes. Often times either the PCV valve or the return line is in the oil filler cap itself.

If you find that everything is indeed hooked up correctly, then it's possible that fixing the PCV system and eliminating vacuum leaks are what unveiled the problem. It's not unheard of for blow-by pressure issues to show up after closing up the PCV system. That is usuallly caused by severly worn piston rings. You could verify this by doing dry followed by wet compression tests. This is often the reason people open up the PCV system as a quick-fix. I had a 351W in a '77 LTD that had this same problem. Instead of running the breather hose from the valve cover up to the breather filter, the previous owner had ran a length of heater hose from the valve cover down to the frame. When I hooked it back up the correct way, I found out why.