Smoke and miss at startup!

Ok guys...started it up and had the GF help watch for smoke. I also was able to get out and look myself. The smoke looks more white than I remember from yesterday. It lasted about 2min with the car warming up on the electric choke. It was out of both banks but more on the drivers side.I let it warm all the way up and shone a light down all four carb barrels at shutoff...not a drop dribbling anywhere.
I was initially thinking valve seal but it would have to be multiple on both banks, no? (No exhaust crossover)
I'm not getting it.