This is the chain that I bought. You can see how much larger it is. The 200x is back up and running once again. Thanks for all your help. The top end is a little louder than in the past, but I'm assuming the rockers will have to wear into the new cam a little. I pulled the bolt on the top of the rocker box and it was putting out plenty of oil, so I know that the oil pump is still good. Smoked a little more than normal, but that hopefully is just the assembly lube used and not valve blow by.