Working on a 440 that was built quite a while ago gets run every summer and put away in the winter. It gets started every other month or so and run for a little while. The Car got put away for a couple of months. Fired it up wasn't running right and blowing a lot of smoke out of the exhaust. Number 6 spark plug turned out to have quite a bit of oil on it. What to check first?

Like I said when the car got put away there were no signs of the car burning oil. and now it did not seem to clear up when ran for a maybe 2-3 minutes.

Thanks, Cody