Here is some pick witch i have done in home (Finland) garage..

all parts are unfinished..
Siamesed plenum.
http://img508.imageshack.us/my.php?image=siiami1px1.jpg
http://img218.imageshack.us/my.php?image=punanendo5.jpg
Also some head work at home/machine shop... RPIV8 43/38mm valves with 7,9mm valve stem + bronze guides..
http://img407.imageshack.us/my.php?image=keskenxf0.jpg
http://img510.imageshack.us/my.php?image=kesken1sw9.jpg
Ported inlet manifold.
http://img521.imageshack.us/my.php?image=kesken4qo6.jpg
http://img458.imageshack.us/my.php?imag ... us1bu8.jpg
to suit 45mm trumpets.
http://img79.imageshack.us/img79/7500/kesken3xo5.jpg
Home made 45mm trumpets..
Not as good as RPI. Laughing (I must to save money and buy goog ones/RPI stuff)
http://img243.imageshack.us/my.php?imag ... titvz8.jpg