I'm not aiming for any particular bhp figure with this engine, it's just something I've always wanted to build for myself.
Scanning the web I've found only a few people mention it, yet nobody seems to have built one, probably due to the cost vrs bhp gains.
GM have now started producing a 2.5 16v engine for the usa market, but the head design is reversed and nothing looks like it will fit our z22se/z22yh/z20net/LE5/L61/b207 engines.