For the last 9 years I’ve been using a 7 psi cap and leaving the coolant down an 1” in the tank.
This week I built a coolant recovery system that can hold about 22 oz of coolant when full so I can fill the radiator full to the top.

My question is: should I change my radiator cap to 14 or ever higher.

56 Vic, B'Ville 200 MPH Club Member, So Cal.