Quoting Brad Hogg <roadhogg@xxxxxxx>: > Lower compression was an emissions control ploy. I understand it is > basically a head design thing. I've never been told the pistons are > different. That 440 dynos out at about 210 HP. Unfortunately, the reduced compression was by different pistons, which makes the process of "restoring" a decent compression ratio difficult, as the whole engine needs to be disassembled. D^2