I was on the dynotester today to see if the carbs getting lean at higher rpms. It has 3% CO at higher speed. The mechanic don`t know what the old engines supposed to have.

Has one of you guys experience with that?

Also I need some advance figures.

Right now it has 35 total at 3500 rpm.
Im still searching for the right spring combination for the Mallory dual point distributor.

Thanks, Frank