no sir that there is a compression tester, it tests the compression in each cylinder. That is important to know as well. What size domes do you have in?
a PRESSURE TEST, is testing for air leaks. If you have a leak some where in the motor, it will run more lean. The bigger the leak, the more lean you will be (its okay to have a very small leak because most do but nothing crazy)
Did you assemble the whole motor your self? who did your porting too? If you watch that slightly homo video i linked it shows what a pressure test looks like