210° @ Cruise and 180° @ Stop? What's Going On?

DEVIOUSDUSTER said
No seal on the bottom of the hood. I have an AAR/Stinger fiberglass hood that uses low tension springs and rubber bumpers. Latched with Eddie Motorsports hood pins.

Do you have a picture of what the seal or flaps should look like? Never thought this would be the issue.
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Is there a gap under the hood that air can recirculate from the rear of the radiator, through that gap, and back through the radiator?

You may try a towel or something like a pool noodle if there is a gap, to see if this helps.