So I've built a few bikes and want to get into porting...do I need to buy anything for some simple porting as in opening the exhaust up to start out or can I go in and do stuff?
Soooo not exactly sure what your question is there, but if you're asking "do I need to mod it after porting" the answer is, no. For instance you don't need an expansion chamber after you port lol. You may need to re-jet the carb, though.
Yes that's my question I suppose lol. If I have everything stock on the engine can I go in and port exhaust and intake without buying anything extra...
I would suggest you do all the reading you can on porting before you do anything. Draw a map of what you want first, add measurements so you don't go over them. You can make a nice paper weight in a minute if you're not careful.