Help with fuel on my mini

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
Pope
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Joined: Sun Sep 24, 2006 4:47 pm

Sun Sep 24, 2006 4:56 pm

Edit: Changed the fuel but still need help with the amount.

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