Mate, I reckon you can expect about 10,000 horse power - is that what you wanted to hear? You could just modify the tacho so that it over reads by 3,000 rev's.

If you want an engine that rev's go and stick a superbike engine in it - then you can tell all of your mates that your engine rev's out to 20,000. I'm not being critical, well, maybe a little, but I just don't see the point. There are plenty of engines on this site that rev hard (but not 10,000 rpm's hard) and equally gain pace across the whole rev range - (which is the point right?) and are reliable.

Yes there are 10,000 rpm engines out there (I think), but you really have to know what you are doing. Anyway... you can go and make your engine hit 10,000 rpm's if you want to - but for the money that could cost you really could have a neat, worked, and reliable A12.

Anyway, tell us more - are you planning to be using this car on the street or track?