I have a l82 aluminum corvette intake manifold and i am going to drill the rear for a coolant cross over and i am not running the egr or choke heat in the exhaust crossover in the manifold, anyways my qusetion is the if i have block off plates all around on my exhaust crossover could i tap the choke heater plate for a pipe nipple and run coolant in the exhaust crossover. would it be worth it? Or is it just stupid?