Although it did win a race for Johnny Rutherford @ Atlanta, the Watson 1965 Rear engined Ford was a disappointment and Offy powered 65 Watson brought the end to Chuck Rodee in 66'. What happened to all of those cars? Branson's Wynns #4 survived to collection but the rest?
Hello! Welcome to the HAMB. Im not sure of the answer to your questions. Most all topics on this forum are pre-'64. Also, you should do an intro here about yourself.
After doing an intro, you need to post your question on the vintage sprint car thread. Lot of guys there with a lot of this type of history in their heads.
Some cars of that era went to the USAC Silver Crown series, but probably not the rear-engined ones. Bob