1972 Monte Carlo Stall/Oil light

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My late grandfather left me a 1972 Monte Carlo with very few miles on it. In an attempt to keep his memory alive I preform routine maintenance on it and drive it very seldom. While starting it the other day, I noticed it would turn over but failed to start and run. Checked the battery and all good there. I pulled all 8 plugs from the engine block and all were wet. Assuming it was flooded, I removed the plugs all at once, blew pressurized air into the block to dry and blew off each of the plug heads. Returned all plugs tight and reconnected the boots tight. Made sure all boots were tight at the distributor cap as well. I pulled the air filter off and used compressed air to blow any excess fuel from the carb. Double checked everything for posterity, turned the key and it fired right up. Let it high idle for a moment and tapped the gas to bring it down to about 10,000 rpm and let idle some more. Backed it out of the driveway no problem and as soon as I put it into drive the en