Hello all,
Paul Vanderheijden with Scuderia Topolino here.
The PBS 8-P head will work quite well with the A112 block (903, 965 or 1050). Of course just adding the head will not get you 100+ HP. I have been building these engines for many years and the best I have EVER done is 114 HP. This was on a motor with 13.8:1 compression with a full race cam and turning 8000+ RPM on 108 octane fuel.
It is possible to get very good power though for the street with very smooth engine performance. As the best gasoline (petrol) that we can get reliably is around 95-98 octane, this will in itself limit how much power we can produce reliably.
We run a complete computerized engine dynamometer facility and can supply the parts to build almost anything you would like.
Drop me a line, or post you question here and I will be pleased to answer you.
Kind regards,
Paul Vanderheijden
www.scuderiatopolino.com