Looking to build a motor for one of our customers at the shop. He asked me about this combo. hes got a 88 REX Si. He asked about useing his A6 block with a Y8 head and putting DOHC ZC pistons in it. Now what i want to know, is this a good combo, I have never really thought about it before. It sounds good because the ZC pistons are domed and should yeld a higher comp. ratio. Just tell me what you think about it, or if you have tried it, how did it turn out.