carb problem?

I have an 84 prelude.
The problem is when I drive for a while at about 40-55
the car begins to lose power but it wont die ?! It is acting like
it has no gas or something, but with a full tank I should be coasting!
It's dual carb so Im hoping its not carb problem's --way to expensive.
Another note it only does it once or so after I start it, and when it
goes through this problem I let it settle then Im off again driving
with no problems for a while. What the heck is going on?

its cuz you have a carburator! haha...i cant stand carburators, all they have is problems...couldnt tell ya what the deal is ive only worked with a couple