It should be possible or with FrankenCIS though which is why I’m exploring it. It didn’t want to “double up”

Based on my logs so far though, I don’t think it needs it. However I’m having some pressure issues rn due to a possibly bad sensor which I am replacing

The others have mentioned several enrichment methods. The CIS does not have the equivalent of an acceleration pump like a carb, becuase it does not need one. With carbs, if you are at relatively low RPM and you stomp on the throttle, the air velocity through the carb decreases until RPM goes up, and mixture goes lean. The accelerator pump provides extra fuel for this transition. But CIS doesn't do that because it constantly measures airflow and adjusts mixture to the airflow and manifold vacuum.

The warmup regulator (more properly called a Control Pressure Regulator, CPR, because it regulates mixture a wide throttle settings) provides enrichment for acceleration, but it's enrichment according to airflow and manifold vacuum, not a "squirt" like an accel pump.