Fishcat37

I posted this in the EF forum, but didn't get any responses. I got my JDM B18C longblock from HMO. It's off an automatic Integra Si VTEC, and i was wondering what all makes it have less hp then the 5 speed. The 5 speed is rated at 180ps (177.5 bhp), and I think the automatic has 170ps (so like 167 or somethin bhp). I know the cams are milder, and the ecu is different. Are the valve springs different like on the intake side (like the automatic B16s)? Please let me know what i should replace when I do Civic Type R or Skunk2 cams soon. thanks