Thermoquad low vacuum readings

Don't be scared of 16 or 17: 1 with a TQ or Q-jet. Remember atomizing the fuel is the name of the game. And those 2 carbs do it so well, they can get away with those numbers. If it starts to studder up around 17 on tip in, stretch your metering tree spring just a little. As far as the vacuum... I got nothin.