Help! Swapped 302 heads on my 318.

victa15 said
I checked the compression on the 1st cylinder. And my gauge didnt move. Im it was getting late so i didnt check the others. When i hand crank it. You can hear the air from the compression. Im going to check the valve hights. The heads were completely redone at the machine shop. So if i had a bad seat or valve he would of told me.
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Have you tried a leak down test???

If you're gauge didn't move when doing a compression check, you may have open valves that aren't seated... Do a leak down test and see if there is any leakage in the intake valves or exhaust valves or both...