jrock

first engine was ticking at idle and running a little ruff. Then noticed a metallic sould at start up and also saw a brief puff of smoke for top rear of ening with hood up. it ran and idled but made a noise after blipping the throttle? Maybe a bad cyclinder from bad spark plug or wire? Should i have a compression check done first? I have not driven it since i heard that noise until a mechanic looks at it.