anyone recomend descent leakdown tester?

chief130 i see that you said close the crankcase breather at idle, i dont have a crank case breather, everything is plugged off except the one opening on the passenger rear side of the valve cover where i hve my pcv valve, i have a crank case breather, but there is no baffle inside my valve cover to protect it from oil, so i figured i might as well not even run it because it will just get drinched in oil withing a few miles and be clogged anyways