The chaps on here, yeah read the article it's pretty good, bought it for the same reaosn search the forum for P1 FRP goes racing. It most probably says something about the ported head in there, if not get back to me in 6 months time and il let you know if it's worth it or not
Ive been looking at the pumabuild fully ported and gas flowed head, then it will probably be a pumabuild map as well. Keep an eye out around April time, il put the details on the project thread ive got going