Hybrid Motor Build Questions

emsmap

New member
I am so confused on what to do at this point. I have a EJ257 shortblock out of a 2005 STi that I will be putting forged pistons and rods along with ACL race bearings. The only thing I am not clear on is what to do with my 2002 WRX heads to make them flow best with this block. Can I just get away with using stock STi cams? Also what to do with them to make the compression stay about the same since I will not be using a thicker head gasket. My goal is to make 400whp.

Is anyone using a Hybrid Setup?
 
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