LA 360 Internal Coolant Leak

Did you have this problem before you removed the header to work on it?
Yes, was loosing coolant prior. However, it has been getting substantially worse the past several days. Yesterday it struggled to fire up a bit on cold start (in FL so warm weather) and then stalled out on me about a minute into idle. Tried restarting and it would not fire up after numerous attempts. May have flooded it at that point so waiting until this morning to try again. This morning struggled to get it started and had pedal to floor to clear out. Probably the hardest start I've ever had the past four months of ownership. Had to keep RPM's up to keep it from stalling out on me, which took a good few minutes to get it idling at an acceptable rate and noticed white smoke form exhaust, which cleared after a few seconds. Took it out for a drive and it wanted to stall out on me at every stop. I did adjust the idle on the carb, which helped a bit.