Had a good time working with my son while we changed out the Edelbrock carb that was on the rig
Over to this craigslist Holley Off Road Avenger
The change over gave me a change to hook up a vacuum gauge and teach about how an engine makes vacuum & boost through the 4 stroke cycle and then to use the timing light to talk more about the 4 stroke cycle.
It is great how on these older engines you can actually see & understand how things work..
Of course since he is part of the youtube gen set I included some cool old movies
1935 movie on gasoline
http://www.archive.org/details/DowntheG1935
1937 Free Air (how air & fuel mix)
http://www.archive.org/details/FreeAir1937