Do you know that is not the 100kw motor?
See it has the TVIS badge on it? It should be the latest version of the 88kw ones. Where did it come from?
Are you sure its the 7 ribbed block and you may have to check if it has oil squirters as i think it doesnt.(doesnt matter too much either way)
If it has oil squirters and the bigport head you got what alot of guys try to achieve by mixing and matching parts.
BTW if its does have the bigport head (which it should with the tvis badge on the manifold) you can use a 4age JDM RWD inlet manifold.