I'm confused! I was on Summit racing looking for radiator options and found this...
Frostbite Performance Cooling Aluminum Radiators FB124 - Free Shipping on Orders Over $99 at Summit Racing
From the look of the picture I thought it was crossflow but the description said downflow. So I emailed Holley via their website and queried the details. Below is their response and my original question. I've highlighted a key element I thought made a radiator crossflow!
Thank you for contacting Holley performance. All frostbite radiators are side mounts tanks. Depending on application, they are either downflow or crossflow. FB124 is a downflow radiator.
Your question was:
Is this radiators tanks top and bottom or at the sides? All your pictures show side mount tanks but claim to be down flow on the summit racing website.
Is there some other reason it could be classed as downflow with side mount tanks?