Here's how we mounted the Radiator .... It has to be sealed around the edges.... You want the air to pack into the radiator and not go around it.... especially on those hot days in the summer.
That is Hi-Temp Silicone that has glue on the back side.
You can see how we sealed it down the inside of the radiator. That's Hi- Temp 1/4" hose that we use around the edge of the metal
And how we sealed it on the outside of the radiator
And the Top..... this is a must if you put a car on the track.
You only want the air going thru the Radiator and not out the sides. except we feed air from the opening on the side panel to the foot box... for driver comfort. car runs nice and kool.