Hi
Yes, fuel filter in the engine bay causes burnt out beetles...
I hope You carry a fire extinguisher just in case..
the vacuum advance can on the side with the small hose going up to the carburetor...
on the arm that goes into the distributor from the can will have a number on it... to identify it...
they are very expensive..
that's why many beetles have the el cheapo 009 distributor without any vacuum advance..
I have been using a Bosch 009 on my 1600 single port for 4 years without any problems...
I have however just bought a new SVDA 034 distributor from the USA to replace My 009 in the future...
I also have the pertronix ignition to replace the points..
You can buy the complete system - single vacuum dual advance distributors new... they are chinese copies, so I'm told but have been used without any problems..
You need to buy some workshop, owners, and operator manuals for your beetle so You can at least change the oil,
and maybe tune the ignition [points] and adjust the tappets...
You would need to buy tools also...
the late Gene Berg said "the best person to work on Your Volkswagen is You"
cheers
LEE
http://community.webshots.com/user/vw68autobug