I just got my prelude a few months ago and I am new to building up cars. My engine in my car is fine, I have a AEM cold air intake, dc sports header, and tsudo exhaust, but I want more speed. I wanted to build an all motor H22 at first but now I think I want to swap my motor for the JDM version H22. Can anyone tell me any good all motor setups, that would be noticeable, because my current modifications don't seem to give me any power increase. What should I do build an all motor or go JDM?  

Use all your curent stuff and put it onto a jdm. if you don't want to get the swap. get a chip for the ecu. also go to the local machine shop and get a three angle valve job.  

open up the head get it ported polished.. have the ports gasket matched to felpro gaskets... aftermarket intake manifold... chip the ecu tweak the timing better spark plugs and wires i gained 3 hp from upgrading my plugs and wires you could try it too.. so now yuou have a list of things its up to you where to start with...