Fan timer after turn key off? B/C our 440 carb boils over mid summer.

Hey folks :) Just wondering if anyone had success with helping reduce carburetor boil over by running the cooling fan 2 minutes after engine shutdown? Motor is mostly stock low mileage 440, performer intake (cross over blocked at intake), new AVS 800, carter mech fuel pump (cant remember model). Fuel lines do not contact engine but may be exposed to some header heat.

Seems like since the BB is an air gap type intake it would enjoy some cooling air after the engine was off.

Issue is: only during really hot summer days, requires 15 - 20 seconds of cranking and I feel like it is a bit flooded so we just crack the throttle 1/4 and crank till it fires. It usually behaves a bit flooded so just holding it at 1/4 throttle and clearing it right out is the key during cranking and after it fires, revving it up a bit. After the first "whoooom" as it lights off and starts revving, it clears out in about 3-4 seconds and will idle fine.

Bit long on the story but does anyone recommend a fan timer / thermostat controller? We have dual fans on this thing.

Also, we are currently running the fans to kick off at 180 and on at 190 with a hayden dual fan adjustable controller.
Thanks much.