Hi Bill What kind of info are you looking for? I had the chance to go for a few more horses in the new lump but decided against it. I have my reasons and may well take on the engine in #1458 later on to make it more fun. Cheers Martin #1458 #4426 content22207 wrote: > Is #4426 concours? If not, why rebuild the engine to factory spec? I'd > think you'd be happier with higher compression and/or a more > aggressive cam. > > I'm beginning to suspect my Volvo re-engine may be a bit more > pedestrian than JZD's. Does your PRV man have any references to ID > just what I've got behind me?