I got the same for an a3. havent tried it yet though. should work well for these though, timing should be dependant on your flywheel. so are you using your original a3 iskra flywheel?
if yes and its still off, have you tried rotating it and adjusting the point gap? does that bring it into spec?
Worst cas you could just swap all the parts ove onto your OG stator plate, thus rearranging points placement relative to the flywheel cam
another worst case option is to just pull out the woodruff pin and press fit the flywheel in the proper spot onto the crankshaft taper. that also totally works and I've done it many times, but it's kindof a pain in the ass and moreso if you ever need to pull the flywheel back off - a likely scenario when you have a cheap shitty ignition AND the coil all tucked under there.