Cooling issues

May I ask who assembled the engine, do you know the ring gap, we're the ring grooves cleaned, what weight oil are you running?
Tia
Bottom end was Sonic checked, align bored and balanced by Geddes Racing. All gaps were properly set but don't have that at my finger tips. brand new KB Hyper Pistons, Schneider cam, New rods, new push rods et...... New heads ...Running Maxima Break in provided by Geddes Racing....20W50 I think?