I'm planning a B16 SiR II swap. I'm making a list of a few mild mods I want to make to engine before I swap it in and need some advice. I listed CTR Camshafts as one of the mods. 1. With this mod would I need to upgrade the valves or springs? 2. Would it be ok to run stock rods? 3. If I were to do an engine rebuild on the B16 SiR II, will I be able to use complete rebuild parts meant for the B16A2? 4. Will I be able to use AEM Cam sprockets designed for the b16a2 on the b16 SiR II? 5. Also, what makes the B16 SiR II motor push out 10hp+ over a B16A2?