Both of my all original small port heads have them but the one thats been rebuilt with bigger valves, hardened seats, dual springs and i think its had some porting done are lacking them. All 3 same casting. I am going to try and remove a set off the spare head. Maybe get a buddy to 3D scan them and i could have repros made via a metal 3D printer ive found that does quality work other than hes in China.
