I had the same problem initially... My timing light just refused to work on the MSD. Due to the multi spark nature it was trying to flash for each individual spark that went down the wire, so it didnt charge the capacitor fully and would look like it wasnt working.
I eventually went and bough a more expensive timing light that said it could handle it, and it works flawlessly
Have an ask around your local club/friends/local garage see if theres a timing light you can borrow.
Hope thats of some help.
Cheers for now,
Sam C
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1973 1303 (super beetle) in Jaguar British racing green,
Raby 2270, B spec gearbox, Lots of carbon fibre, Wolfrace Octane Black 17x7.5, Goodyear Eagle F1's, Kerscher suspension front and rear, kamei airdam in carbon, corbeau seats, momo millunium steering wheel.
CDT eurosport 6.5 front speakers, IDMAX 12D2 sub, rockford old school amps.
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