M20F-1968

John, 

I have a few questions about Rayjay TN on a F model that you may be able to answer. I have a 67 F not pretty or nice radios. Has 201 screen, flap gap seals and laser cowl flies well and fast 155 kts TAS at 65% 7K-11K with 9.8-10.1 GPH 

I am at the beginning of the thought process of adding a Turbo

What TAS can I expect on an F with the TN if I run 65% power In the teens ? I cannot seem to find this anywhere 

How has the turbo failure rate been?

I would appreciate any information you can provide to help me make some decisions 

Jeff Howe