if you're turning the crank by hand you will feel the compression building as you get to tdc, but since you're not getting comp via a comp guage then i would check your valve adjustment. it could be out of time, but we had a car a couple weeks ago that someone else had installed cams in and when it was brought to the shop i couldn't get it to start no matter how much fuel i added or took away. we slapped the comp tester in and all cylinders were no compression except one and it had very little. we assumed the valves weren't adjusted and were out of spec since someone installed cams. charles adjusted them and there was compression and she started right up.