Disputing credit items

I recently disputed several items on my credit report. So far I have had 7 out of 10 items removed from my Experian credit report. I have not received the results from Equifax and TU yet. We are planning to buy a home in the next few months. I know we need a 640. I have one car loan, 2 credit cards and a small personal loan that are in good standing with no late payments. The items I disputed were a couple of months old to three years old. About how much of a score increase will this removals give me? I have a 576 right now. Thank you.