Heat is horsepower. Add more clearance. Treat it like a blown motor.
Take a look at suggested ring end gaps. Just some food for thought.
Ring End Gap Recommendation Guide
top
Speed Pro Top Rings
(Ductile Iron & HF479)
4.000" Bore Example
Min. Gap Factor
Moderate Performance .016 - .018 (.004 per inch of bore diameter)
Drag Racing, Oval Track .018 - .020 (.0045 per inch of bore diameter)
Nitrous Oxide Street .020 - .022 (.005 per inch of bore diameter)
Nitrous Oxide Drag .028 - .030 (.007 per inch of bore diameter)
Supercharged .024 - .026 (.006 per inch of bore diameter)
Speed Pro 2nd Rings
(cast iron)
4.000" Bore Example
Min. Gap Factor
Moderate Performance .020 - .022 (.005 per inch of bore diameter)
Drag Racing, Oval Track .022 - .024 (.0055 per inch of bore diameter)
Nitrous Oxide Street .024 - .026 (.006 per inch of bore diameter)
Nitrous Oxide Drag .028 - .030 (.007 per inch of bore diameter)
Supercharged .024 - .026 (.006 per inch of bore diameter)