10.2 : 1 compression 360 at sea level. Options?

Or it wasn't cranked thru enough compression events for the numbers to peak.
Some guys think 5 cycles is enough, some go eight.
Some go until you get two or three cycles with the same or similar numbers; that would be me. But I also keep track of how many cycles it takes to get there. A tired cylinder might take 8 or ten cycles,compared to another better cylinder peaking at 6cycles.....in the same engine.If one cylinder takes more than 2 or 3 additional cycles to peak, there is a problem, in that hole.
In any case; MoparOfficial has it right; it's time to find out where it's going

Or the cam is dropping lobes