Has the car run properly since the engine work?

If it has not your problem is that your cam is timed 360deg out. In other words the crank comes to TDC twice for every revolution of the cam. The marks on the cam can be lined up in two different senarios. One is where both valves are rabbit ears open (that is TDC after compression stroke) and rabbit ears down which is after the exhaust stroke and before the intake.

I have seen this done many times as the washer is notched for both senarios. To state it differently: with the crank on TDC the only way one can tell whether #1 or #6 is firing is to look at the distributor. What you have is both #1 and #6 firing at TDC.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician