A friend sent me this.
See if you can figure out the plug gap and ramp speed on the cam.

http://video.google.com/videoplay?docid=-5815350492893860613&hl=en


Gooday
Caroline & Jim
& Lucinda our 3104
51-3100 inliner @ 4655
small wheel moves by fire and rod,
big wheel moves by the grace of god,
every time that wheel turns round,
bound to cover just a little more ground.