What the heck is Sea-foam?
Techron probably works better, but seafoam works.
Pogo, Techron comes in the crud that Chevron sells. (I'm Partial to another company) I've never had any problems with Seafoam and the seals in the fuel pump. It specifically says you can use in to clean fuel injectors. I wouldn't worry about either of them. I believe all the major brands use detergents to keep the fuel systems clean. The thing about Seafoam and Stabil and others is they prevent problems due to the fuel not being used where it has a chance to break down and create "bad" things that flow into the engine. In marine fuel systems, the diesel users have filtration systems on their fuel lines to prevent this crud from entering the engine. Diesel fuel actually grows AppleSauce and collects water while idle which obviously doesn't run too well in a fuel injector or engine.