You could try replacing the PCV valve.

AC Delco CV774C or Fram FV393 are PCV valves that will fit the 572RB engine.
They are on ebay for $22.
There may be less oil in the intake.

Hello. An oil separator can be installed to eliminate the problem. The Moroso 85484 air/oil separator can be installed on the 572RB engine's PCV system. Designed for high performance engines, it...

GM ECU 1227730 was used on several General Motors cars in the late 1980s and early 1990s, including the Chevrolet Corvette and Camaro. The chip used in this ECU is known as "memcal".
The specific...