Well, I just Seafoamed the Hatch, and let me tell you, it helped! Before I used to not have throttle response anytime, but especially below 2000 RPMs. It now pretends to have pick-up! So far, I give Seafoam three points!

I agree. I like seafoam. I've done my 92 loyale. I belive I did that 84 you picked up as well. It seems to help clean things up. I have heard many cases of it causing leaks, but it is most likly existing leaks that got cleaned out also- allowing leaks to form. New lines, ect will fix any of that.

How is the Procedure to "Seafoam" an Engine?

Just follow the directions on the can. 1/3 can into the gas tank. 1/3 can into the engine oil. 1/3 can down the carb or throttle body. When you put it into the intake, go slow at first, then dump it in to kill the motor. Wait about 5 min, then restart. Lots of smoke and crap. Drive it around some, then change your oil. Thats basically it! Search up Seafoam here or on the web- you'll get lots of advice and videos! Watch for some fuel leaks to start, if you have any old fuel lines, ect.