From all that I have heard the rising rate FPR tends to work a little better but it depends what kind of resources you have available. If it was me I would try and see about some kind of aftermarket fuel management (read: NOT piggyback) like in my case there is hondata, I don't know whats available for the SRT's, there is also MegaSquirt which I have heard can produce some pretty good results but it's pretty involved.