Hello everyone, Sorry if it's not the right place to ask this question I´m from Brazil and I have a 75 Dodge Dart with a 318 ci engine and I'm having trouble overheating. When the engine is at an average temperature, it works well, but when it gets close to 85ºC (194F) degrees it starts to lose efficiency as the engine heats and heats the holley 600 carburetor I already installed a spacer insulating between the Intake manifold and carburetor and thermostatic valve to open fully at 160ºF. The radiator has been cleaned and the coolant replaced. The engine is equipped with intake manifold Weiand has an internal heating done by exhaust gases, (I think is heating up too much) Has anyone already eliminated this port or know if there is any problem with the engine running if it is closed with holley carb? Any other idea to make the engine run a little cooler without electric fan or hard modification? Thank you to all !