Hi all. I had taken my carburetor in to get it rebuilt and come to find out, the screws were stripped and it is not able to go back together. So, I'm in need for one to fit an 85 ford mustang 2.3 My carb number e5ze aa. On the carburetor I found a number 8509. Anyone have one or know where I can get one? I did find national carburetor to have one at $149.00. Probably cheap enough hua?