New engine has loss of compression

Well currently I am judging it off the way the starter speeds up every revolution, and the fact that I didn't get the heads checked before I put them on. I am going to do a compression test when I get home today, so I will have some actual results to judge by.

A compression check will show compression and my hid a leaky valve(or rings for that matter) but a leak down tester will point to a valve or rings do to were the air is leaving the motor.

If you don't have a leak down tester i would still start with a compression check.