They were about $12,500 plus shipping from toysport in the US. They ar rebuilding there site at the moment but i had a fair bit of experience with them as well before i started playing with the dattos. From memory they only hit 10,200-500 rpm though it wouldnt be too hard to get it to go higher. These engines were built using the "silvertop" version of the 20V as they were stronger than the black. Purpose built by toyport as ready-for-race engines for the formula atlantic series. Expect a rebuilt top-end every 2,500kms though...

Oh and you needed a CAMS licence here in australia to be able to buy one.