When I was a young man...
My car broke down (cross country trip) in the South. I needed to get some work to make the repairs. I went to a local garage and asked for a job. The owner quizes my breifly and asks this question: "Whats the firing order of small block Chevy?" I answered immdediatly, "18436572" and got the job.
Don't know why that particular firing order stuck with me, I still can't recall any Ford firing numbers without looking them up (hangs head in shame).
