[rbuckin111]

Just thought I would give an update. Replaced the one exhaust valve spring and everything is back to normal, running smooth and great. I am amazed at the amount of difference one little spring can make, going from almost not running to running well. Hopefully this will be the last one of these I have a problem with. Still have no idea how a properly adjusted valve spring could just break like that. Thanks for your input 1963c-10!