I haven't discovered a way to look up past posts and I don't want to post something if the answer can be found here or previously discussed.
Click on "Home", go to the search box and type in the words you are searching for. Then choose whether you want the search to be limited to the title of a post. You'll get pages of threads.
Sometimes the word is too short for the forum search. Go to google, type "v8buick/word", ie: v8buick/run