Happy to report our new beehive valve springs are now tested and available.
Details here:
www.928motorsports.com/parts/32v_valve_springs.php
Our beehive springs are wound from super-clean ovate wire, then heat-treated to relax internal tensions and shot-peened for fatigue resistance.
The bee-hive spring style has been widely tested and improved in these last 10 years. They are a proven performer on many many engines. And now, they are available for your 32V 928!
Good articles on the bee-hive valve spring design are everywhere. But here's a good, short article you might like:
www.enginelabs.com/engine-tec...-work-for-you/ 
