one was 72 oem primary with 10%etoh gas it was lean and bogged right before the secondary kicked in.
second is 75 main. ran great sorry for the bad pic
third is 78 main, too rich didn't need choke to start( with full choke it would quit.), after u let off the throttle it would rev for 3-4 seconds before idling.
i went with 75
see my pipes from the 72mains
