I did the full Seafoam treament according to the sticky without any problems. Smoked pretty good when I restarted it. Just to repeat what was mentioned earlier, for the intake cleaning stage, you start with HALF a bottle (the other half already having gone into your crankcase), and slowly feed 2/3 of this amount through the brake booster line, then dump the remaining 1/3 (again, 1/3 of HALF the can) in all at once. When I did this, I had to pinch the booster line almost closed to keep the engine from dying. As I was feeding it in slow the engine would bog a little, then pick back up. When I poured the last little bit in all at once, it bogged hard but didn't die, so I unpinched the booster line, and it revved high for a second then died. I'm guessing not much got suspended inside the engine since it didn't die right away. After that I sprayed the inside of the intake down with Deep Creep through the throttle body, and after about an hour I fired it back up. It was belching out smoke for a good 15-20 minutes.