I tuned my guitar down too Eflat and notice a lot more buzzing from the G(?) string. Sorry, I dont really know the strings. The 4th string down. Is this a problem that can be fixed by changing the action?

Also. I wanted to put heavier gauge strings on my guitar but since I got the guitar i noticed it said I had too add more springs too the tremelo if i wanted too go with heavier gauge strings. Is this really a requirement and will I also have too change the action if I go too heavier gauge strings?

Any help will be appreciated.