I’ve got a copper radiator in my 70 with a mild 454. It doesn’t overheat, but when it’s hot out it does get hot. Since I put the fan shroud on (mechanical clutch fan - I don’t want electric fans), it now is cooler at idle, but when driving on the highway it runs about 10 deg hotter (about 200-210 deg). It doesn’t seem to creep after 20 min and cools down at idle. I assume it has less airflow with the fan shroud installed for the highway. It used to stay lower on the highway and heat up, but not creep at idle, like in traffic. I’ve been searching the radiator threads here: https://nastyz28.com/threads/budget-aluminum-radiator-guide-and-taurus-fan-mounting.131059/page-7 https://nastyz28.com/threads/ebay-aluminum-radiator-review.198429/page-2 https://nastyz28.com/threads/radiator-nirvana.159522/ I decided to buy the 433168 from advanced auto as I thought the eBay radiators would be too expensive. It should arrive next week. But then I read some other reviews and people said the 433168 is mediocre and not up to higher hp engines. I plan to upgrade my engine in a few years and was thinking maybe the eBay radiators are better. there’s a bunch that are only a little more expensive and say they are “3 core”. Does anyone know if the 3 core aluminum radiators will cool about 600 hp? Right now I cruise on the interstate at 3000 rpm and eventually also plan on putting ac back in. I might just return the advance auto radiator when it comes in and buy the eBay one for $145. https://www.ebay.com/itm/273282506132 I can’t swing $500 or more for a griffin or be cool. I’m curious if the 3 core will cool better than the 433168 which is a single core? I think they at both single pass. I’m wondering if the 3 core is too packed and won’t have enough airflow? The one review thread above is for a two core radiator which I can’t find. also, does anyone know if I can use the factory rubber isolators and radiator bracket to hold it in the car? It’s got welded square tanks instead if the crimped plastic tanks that have a lip that the isolators normally go around. appreciate any insight. thx!