Rule of thumb, when doing a compression test all the cylinders should be within 20% of each other. When you do this test you are cranking each cylinder the same number of times and writing down exactly as possible what each one is? 155 and 175 no real problem 122 and 200, problems. Need to know all the numbers in sequence, then I can tell you whether or not to do a CLT test which will tell you where its leaking from. Then we can decide if its fatal.