You realize this thread is 7 years old. But here's an answer to your question. http://www.hotrodreference.com/443/oldsmobile-engine-firing-order/
Oldsmobile 303-324-371-394 Rocket V8 Engine – 1949-1964 Firing Order: 1-8-7-3-6-5-4-2 Oldsmobile Aluminum 215 – 1961 to 1963 Rotation: Clockwise Firing Order: 1-8-4-3-6-5-7-2 Oldsmobile V8 Engines – 1967 and later Rotation: Counter-clockwise Firing Order: 1-8-4-3-6-5-7-2