anyone recomend descent leakdown tester?

how do i determine what is causing this smoking upon deacceleration? i'm going to completly plug off my pcv system and see if that stops it, if it doesnt then what do i do? i was thinking my only option was to get a leak down tester, if compression checks out, and it still smokes even with the pcv system completly plugged off then it dont really leave me with much choice but to get a leak down tester, unless there is a way to tell if my intake manifold gasket is causing this. And is there a way to tell if the valve guides are worn out with the head still on the engine?