well it appears that you have enough time to devote to a respond to our comments. So either way you have just as much free time on your hands as do us.
Now, when your referring to a specific piece of equiptment that goes on a car, please - for your sake, know what it means and don't referr it to "they said" it was called this.......cause from what it sounds like "they" are using lingo that I have yet heard off.
No one is "off topic" we just don't know wtf your talking about, try posting it on honda-tech.com, or clubsi.com and chances are your going to get the same response as us, maybe someone will know what your talking about but chances are they are a friend of a friend that told you about the "decompression plate" to begin with.
well, i am not a moderator - but i know my shit from a standpoint of actually doing work on honda B series motors, if you don't like my advice or repsonse,,,,well deal with it and move on.
FYI - we would love to stay on topic but we don't know WTF the topic is about, we were just trying to get a better idea as to what "they told me" was referring too.
To be honest, you don't know what your talking about considering the fact that you are asking about a part that "they"/"someone" told you about.
if you don't have the time to read the posts,,,,,,,well then don't expect us to respond properly.
the point is, regardless of what your asking, your question was rather vague. Gasket or deckplate would have been adequete.
Regardless if its both, my response would be the same, you want to lower compression get so forged pistons, headgaskets are a temporary solution to a permanent problem.