Intermittent blue smoke, 302 HO
Hey folks, new to this board, and I thought I would pick your brains. I have a 302 HO out of a mustang installed in my Bronco. I built the motor 10,000 miles ago (stock), and now once it's warm, and you let it sit for 10 minutes or more, and re- start, I get a minor puff of blue smoke for about 3-5 seconds. It doesn't happen all the time, only when the engine has been hot, and then sits, and you start it again. At first I thought it was the valve guides, and I replaced em, but it still does it. Where else can oil seep into the cylinders? I do not have any other performance problems. Any thoughts?