Thanks for the sentiment Zoom, you're too kind but you know I did think I was wrong once, but as it turns out, I was mistaken!
What most of us do here on the site is we make the motor injest it while it's running. This makes for a much faster effect than just adding it to the gas tank,
I use about 1/3 of a can per application, so in essence I get 3 apps. I do this by pouring it into another small container then I just let the engine suck it in through a vacuum line directly into the intake manifold by way of say, the pcv hose for example.
The real trick is to try and keep the engine from stalling that is till right as the very last drop is going in, then let the engine stall (or quickly shut the key off).
If you don't get it to stall right at the end, don't panic, you'll get better at it as you do additional applications. Now you let it sit for 30 to 45 mins. while it soaks in and dissolves that carbon. Now's a good time to point out how much smoke this little process generates. First off, you want to do this knowing it will
be very smokey, so don't do it in a garage, and consider thinking about your neighbors reaction as well. It will only smoke a bit when you first add it to the running engine, but the real smoke comes later after you do the restart.
It will be a little hard to restart, but it will restart, and then when it does, it will generate a ton of smoke for quite a while. I like to take the car down the road pretty much right after I start it and plan on seeing a constantly diminishing smoke trail for as much as 3 miles or more! Again, consider your neighbors and other drivers prior to doing the sea foam thing.
After you get back, you'll find your car is idling noticeably smoother, and it will start much easier for you in the future.
Let us know what you think if you decide to give it a try. good luck