I am going to do a leak-down test next week. Then I'm going to pull the valve cover off, pressurize the cylinders and change my valve seals. Mike I changed the injectors & computer it was still same problem. It's smoking bad at idle so I hope it's just the seals. They are the old style seals I have the new style FelPro SS72683. If it's the head or rings I have a spare head & block ready to go in. I'm going to run the chip and big injectors as I think now it's oil causing the idle problem. I'll know more once I do the leak down test. Thanks