HELP Bad Advise

Ok so hear is the deal my buddy owns a garage and told me that he would order parts for me to save me a little cash since I am on a tight budget. I asked him to get me a new clutch, flywheel, throw out bearing, pilot bushing, and alignment tool. He got the parts for me from centerforce and clutch master. Due to some unforeseen financial issues the parts sat on my shelf for 2 years.

Last week I went to put the flywheel on my 340 and the bell housing would not fit over the flywheel. He told me that it was because the new flywheels are more heavy duty and I just need to grind a little off the bell housing to make it fit. I did so since he know more than I do or so I thought

Then when I went to put the throw out bearing on the shaft I realized it was about 1/4 inch to big. I contacted Clutch master and they said they will send me the right bearing free of charge

NOW THE PROBLEM. I started looking on this forum and realized that I should have gotten a 130 tooth flywheel but HE ordered a 143 tooth flywheel. My flywheel is Brand F***ing New but is too old to send back and exchange for a 130 tooth one. I have my original flywheel still but don't know what to do. Can I use the bigger flywheel since I made it fit or am I going to have starter problem. PLEASE HELP.