New Peach Tree Help
 

I have just purchased a Red Haven Peach tree for my back yard. I have
been reading up on pruning and had a question I was hoping someone
could answer.

Q. I know that you are supposed to prune down a newly planted peach
tree to 3 leaers and an open center. The problem is I bought a 2 year
old peach tree that has already been pruned to an open center and is
showing signs of fruit. Should I prune the tree down anyway or will it
be fine if left as is.

Also if I can keep the tree as is, it has 7 side branches coming out
of it. They are about 18 inches long each. I would like to shorten the
tree and give it about 5 side branches for fruit. Will this be too
much pruning for the tree, and if not when should I prune.

Thanks