Auxiliary water pump

True, it would be easy enough to do but then the money that was spent on the serpentine setup would be partly a waste.
I worked on this car all winter and finished up a couple months ago but only made it to the track twice. The reason is front end vibrations that I havent figured out. I have bought new wheels and tires and 3 of the 4 wheels were out of round so I had Summit exchange them. When I'm at 90-100mph, the front starts vibrating and I have to let off before the end of the quarter. I'm only running 12.2's now, but know the car will do much better with a proper launch, and a good top end.
So, I do plan to race about every weekend next summer. I love racing. With the 4:30 locked rear end, its not too good on the road so I wont be street driving it much, except to test and tune.
When I did a few hot laps, the car got to 220 degrees. It just takes forever to cool down so I figured that if I could circulate the water and leave the fan on, it would cool much better in the pits.
I may have just talked myself into the electric water pump, lol

you have other issues to solve with your current cooling system if the car is getting to 220 after every pass.
I would try and fix that first, instead of trying to put a bandaid on it by getting it to come down from 220 quicker.
That isn't normal.