I believe that you will need to add another step after the “New Item in Board” trigger to lookup the column values.
I don’t think the Zapier integration allows you to do this as there are no ‘search’ functions.
I would suggest looking at Integromat. They also have a connection with ActiveCampaign and will allow you to look up the column values based on a pulse_id which you are given in the event information.
You can generally make a better workflow using Integrotmat and the pricing is cheaper than Zapier starting at about $9 per month. They do have a free version but is limited. Although depending on the number of actions you require, it may be suitable for you.
The integromat scenario would look something like this:
Wait for Trigger (New item on the board) -> Get the column values from the pulse -> Complete action with ActiveCampaign
Please note, that a new item is created without any values for each column. You may receive some weird responses if the column values haven’t been populated before this event is fired.