72 Dodge Demon Overheating

Does it stabilize at 210 after 1/2hr? So your slowly building temp to 210? I'd say that if you dont have a shroud, try that....otherwise your engine fan is really just blowing hot air around the engine compartment.

Is your elec. fan a pusher or puller? Mounted on the outside or inside of your rad? It could be blocking some air that the engine fan is trying to pull in at idle if it's not on too.

Last question, does it get to 210 with the elec fan running at idle too? If so, then I'd say you need to still try a shroud...not sure how big your elec fan is but a small one wont move much air depending on how it's wired...as a pusher it's even less airflow (cfm) than rated typically.

Really last question. Is the rad new? Been re-cored? You say 3 row...but how old is it? Copper/brass or alluminum? Lot's of factors here...