Yeah better find where that tick is coming from before running it down the road. Good 383s are getting hard to find, hate to see you damage that one.
You can put it on TDC firing on #1 mark the timing of the distributor to the block with a dry marker, then pull your distributor.
You can get a look in there with s flash light to see how the lobes of the cam are holding up. Same with the fuel pump rod and cam lobe is right there too to check out.
Can get a peak at that front cam bearing too to see that it is not peeling out at the same time.
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