Quote:
Originally Posted by MetroMPG
Blocking the radiator alone is OK for warm-up, but may not help much with aero, since you've permitted air into the "aerodynamically dirty" path to the engine compartment.
The goal is to only allow in as much as you need for cooling, and send the rest around the vehicle, where the aero penalty is lower.
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I will focus on the grill block after I get the tonneau cover squared away tomorrow I have two panels cut out that fit well together over the bed. Tomorrow comes the hinges and attaching them to the truck.