My 1965 Mustang six needs a motor. The OEM was bored to the max at .060" which is not recommended, but I had no choice. When hot it refuses to restart due to wall-flex. Once it cools a little it starts right up. Timing, points, plugs, wires, all related ignition parts are new and compression is great. On a trip to Tennessee and Mississippi last summer it did this refusing to start thing, so I understood when it was bored this could happen. If not shut-off it will run 75 mph getting 25 mpg, run well past the century mark, idle smooth in town, and works great...but if it dies, restarting is a problem. I need a 200 not a 250, and I build my own motors but send out for machine work to a friend. Any suggestions or places to contact would be appreciated. I am not looking for a rebuilt motor! I am 75 years old and raced for years, I am also an ASE certified mechanic who has built too many motors to count. This is not new to me, but the last 200 was made in the 80's...I think. All the new parts I put in this engine will be swapped into the new one and I know my mods work.