I'm new to the forum. I have a question - I'm looking at a 1949 Jeep CJ2A with a Ford 200 6 in it. The owner says it may need a valve job down the road.(blows black smoke for about 10 min after warmup) How difficult is it to find valves for that engine? (assuming that is what it needs) I am no mechanic. So go easy on me . Thanks, Smitty