well I would say honestly if you are using hondata just buy bigger injectors now. I would go no smaller than 660cc and avoid RC injectors....go with precision they are cheaper and have a better spray pattern. also for safety I would honestly use the inline pro head gasket and block gaurd....jan and erik run stock head gaskets so it can be done, but I can run up to 22psi on that gasket on a good tune on stock internals. cars have gone as fast as 11.2 on it....also look into a block gaurd if you are doin the gasket