You're looking at 350bhp at the moment, then more at a later date?
It's taken years of development for the only 3 or 4 of us that have got that far with the 1600cvh, trust me, it's not going to be a case of bolting a turbo to that engine and everything will be OK. It's going to be laggy as fuck and a whole lot of agro to get everything right.
Good luck!!