Reageer op: Sprocatti Home › Forums › English › Pub talk › Sprocatti › Reageer op: Sprocatti 9 april 2011 om 15:42 #148159 Piet30Topic starterBerichten: 1069 hehehe, it’s hand made. 😉 The bore is 57mm and it is round. I’ve marked the bore with blue color. The rest are ports.