There are some threads about this. Get yourself a can or something to put the seafoam in then start the car, pull off the vacuum line at the brake booster. Here's where you kind of need either a second person or to be very much like Gumby, you stick that vacuum line into the seafoam and it will suck the cleaner into the engine and try to kill it at the same time. Allow the engine to suck up about 1/3 to 1/2 of the can of seafoam, you should rev the engine up above 3500 RPMD to open the VCTS butterflies if your car still has them, then shut off the engine. Let it sit for about 15-20 minutes. During that time you should reconnect that vacuum line and also unplug your battery to reset the ECU. Once it has sat for the duration, get in, start it up and drive it like you stole it. It's gonna smoke like nothing you've ever seen for awhile. That's the funny part, seeing peoples faces as you are driving by.
Good Luck.