No-load Misfire Puzzle

Demon 408 said
As wild&crazy said, check timing. Timing first, then carb. Especially if you have not checked intial, vaccum and total timing.

I 100% agree with you Demon, but if the carb is not right from the get go (it was in storage) won't it throw the timing off or something?? Not claiming to be an expert or anything, just wondering?? :-D