I agree with Jerry, the 230 has a very mild camshaft profile, so it's unlikely the springs were ever abused. New ones are cheap enough if you want peace of mind, but what you have will work just fine. If go with new springs, you should really measure the stem height, and set all the spring heights. It would require more or less shims per stack and another tool. http://www.rbssuperchargers.com/images_temp/1024771000WFLOWERS_001.JPG

Dusty pointed out what looks like an offset spring, most likely the shim has a bigger center hole then needed and it walked out sideways a bit, its nothing to worry about.

This is the type of seal you have,
http://cdn2.bigcommerce.com/server3...eals_LRB__42121.1362504429.1280.1280.jpg I like these greenish blue type, http://competitionproducts.com/images/CPS5325.gif.

Just be sure what ever you buy, it fits snuggly onto the head. I helped a fellow fix a smoking engine when the builder put loose fitting seals on it. The seal road up and down with the stem instead of clamping to the head. Measure the boss on the head to be sure you are getting the correct seal, more then likely it's .500".